find position vec of the point which divides CD in the ratio 4:-3

I really don't understand the ratio part of this question.

I know that minus sign indicates that it divides externally

so i took the point as P which divides externally

Than i soldes

OP>=OC> + CP>

i know that CP> is 3/4th of CD>

so 2i + 3j + 3/4(-i-2j + 2i +3j)

Solving this i get the wrong answer.

Can someone explain?A diagram would be much appreciated.