Question

15/4 and x/3 as a proportion

Answer 1

`x=(45)/(4)`

Step-by-step explanation

In a proportion both ratios must be equal, so

`(15)/(4)=(x)/(3)`

Step 1

solve the equation,

`\begin{gathered} (15)/(4)=(x)/(3) \\ \text{cross multiply} \\ 15\cdot3=4\cdot x \\ 45=4x \\ \text{divide both sides by 4} \\ (45)/(4)=(4x)/(4) \\ (45)/(4)=x \end{gathered}`

hence

`x=(45)/(4)`

I hope this helps you