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Rule of three & ratio

Calculate direct and inverse proportions A:B = C:X.

Frequently asked questions

Is Rule of three & ratio free to use on Toolkoa?

Yes, the Rule of three & ratio tool is 100% free, unlimited and requires no sign up or installation.

Are my files sent to any server when using Rule of three & ratio?

No. Every operation on Toolkoa is processed privately and locally, directly in your own browser.

Do I need to install anything to use Rule of three & ratio?

Nothing to install. Rule of three & ratio runs in any modern desktop or mobile browser, and once the page has loaded you can keep using it without relying on the connection.