Solve problems involving ratios, rates and proportions, including making estimations.

Ratios, Rates and Proportions

4.4

Ratios, Rates and Proportions

Determine the ratio of three quantities, given two or more ratios of two quantities:

Example

If \(p:q=7:3\) and \(q:r=3:5\), find the ratio \(p:q:r\).

We can see that

\(\begin{aligned} p:q&=7:\color{red}{3} \\\\q:r&={\color{red}{3}}:5. \end{aligned}\)

Thus, the ratio of \(p:q:r\) is \(7:3:5.\)

4.4

Ratios, Rates and Proportions

Determine the ratio of three quantities, given two or more ratios of two quantities:

Example

If \(p:q=7:3\) and \(q:r=3:5\), find the ratio \(p:q:r\).

We can see that

\(\begin{aligned} p:q&=7:\color{red}{3} \\\\q:r&={\color{red}{3}}:5. \end{aligned}\)

Thus, the ratio of \(p:q:r\) is \(7:3:5.\)