If w is inversely proportional to the square of v, and w=3 when v=6, fund w when v=3

From the information, w=k/√v
where k is the constant of proportionality, given by:
k=w√v

w=3 when v=6
thus
k=3√6
hence:
w=(3√6)/√v
hence the value of w when v=3 will be:
w=(3√6)/√3
w~4.24264