A vector has magnitude same as that of A =3 i +4 j and is parallel to B =4 i +3 j. The x and y components of this vector in first quadrant are x and…

A vector has magnitude same as that of $\displaystyle \vec{A}=3 \hat{i}+4 \hat{j}$ and is parallel to $\displaystyle \vec{B}=4 \hat{i}+3 \hat{j}$. The $\displaystyle x$ and $\displaystyle y$ components of this vector in first quadrant are $\displaystyle x$ and $\displaystyle 3$ respectively where $\displaystyle x=$ $\displaystyle \_\_\_\_$.