Resposta :
[tex]\Large\boxed{\begin{array}{l}\underline{\rm c\acute alculo~da~constante}\\\underline{\rm de~proporcionalidade.}\\\\\sf k=\dfrac{9819}{2+3+4}=\dfrac{9819}{9}=1091\\\\\sf 2\cdot1091=2182\\\sf 3\cdot1091=3273\\\sf4\cdot1091=4364\end{array}}[/tex]