Question

Solve the proportion

$\frac{b}{5}=\frac{28}{35}$.

Short answer

The solution of the given proportion is $b=4$.

Step-by-step solution

Step 1.  Given

The given proportion is$\frac{b}{5}=\frac{28}{35}.$

Step 2.  To determine

We have to solve the proportion$\frac{b}{5}=\frac{28}{35}.$

Step 3.  Calculation 

Solve the given proportion.

$\begin{array}{c}\frac{b}{5}=\frac{28}{35}\\ \frac{b}{5}\cdot 5=\frac{28}{35}\cdot 5\left[\text{multiplyeachsideby5}\right]\\ b=\frac{140}{35}\left[\text{simplify}\right]\\ b=4\left[\text{divide}\right]\end{array}$

So, the solution is $b=4$.