---
title: "Proportions and ratios - Free calculators | Numequo"
description: "Solve proportional relationships, ratios and scaling problems with clear intermediate steps. Free, fast and easy to use."
canonical: "https://www.numequo.com/math/proportions-ratios/"
locale: "en"
---
[Numequo](https://www.numequo.com/) › [Math](https://www.numequo.com/math/)

# Proportions and ratios

Solve proportional relationships, ratios and scaling problems with clear intermediate steps.

## Available tools

- [Rule of Three Calculator](https://www.numequo.com/math/proportions-ratios/rule-of-three-calculator/) - Solve a direct proportion from three known values and see every cross-multiplication step.

## Solve proportional relationships, ratios and scaling problems with clear intermediate steps.

Proportions help you find a missing value when two relationships follow the same scale.

Check that the quantities are directly proportional before applying a rule of three; not every comparison grows at the same rate.

### Tools to explore next

- [Rule of Three Calculator](https://www.numequo.com/math/proportions-ratios/rule-of-three-calculator/) - Solve a direct proportion from three known values and see every cross-multiplication step.
- [Percentage Calculator](https://www.numequo.com/math/percentages/percentage-calculator/) - Find any percentage of a number instantly.
- [Percentage Change Calculator](https://www.numequo.com/math/percentages/percentage-change-calculator/) - Measure the increase or decrease between two values.

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