Question

the ratio of 1.1 to 42 is the same as the ratio of 3.3 to

Answer 1

This is a question on relating proportions and our approach will be to cross-multiply.

$1.1\colon42=3.3\colon x$

This can be rearranged to get:

$\begin{gathered} \frac{1.1}{42}=\frac{3.3}{x} \\ \text{Cross multiplying gives:} \\ 1.1x=3.3\times42 \\ x=\frac{3.3\times42}{1.1} \\ x=3\times42=126 \end{gathered}$

x =