Answer
$$\langle3,6\rangle$$
Work Step by Step
To scale a vector in component form, multiply each component by the scale factor, in this case, $\frac{3}{2}$,.
$$\frac{3}{2}\vec{v}=\frac{3}{2}\langle 2,4\rangle=\langle \frac{3}{2}\times 2,\frac{3}{2}\times 4\rangle=\langle3,6\rangle$$
