Who is at fault if your car is hit from behind and you hit another car in front?

It is the car behind you, that person is At Fault.

Another point of view.It depends who is at fault. And all 3 of the people involved's insurance companies will be investigating this.

- The person behind may not have been concentrating.

- The person in the middle may have accidently stalled.

- The person in front may have accidently stalled or driving too slow in proportion with the rest of the traffic.