If Ketu is well - aspected in this House, it makes the native hard Working, Wealthy and blessed
In the case of afflicted Ketu in this Position, it might bring about problem in learning things and speech disorders like stammering etc.
Ketu in the 3rd house usually helps the native to be renowned, wealthy and successful in his life.
With Ketu in the 4th house. there's a possibility that the native will move away from his native place to foreign land