The pairing of 3 and 4 can lead to either a promising, or a very difficult and challenging combination. When the spontaneous 3 pairs with the grounded 4, something has to give, and often it won't. The 3 is an optimistic, fun loving number, one of go with the flow attitude that takes each day as it comes. The 4 on the other hand is more disciplined, practical, and has a definite plan for the future. If the two of you can ever figure out how to meet in the middle, and balance each other's shortcomings, this can be a good combinations. However, when life becomes a challenge and wordly problems arise, the 3 and 4 are a pair least prepared to deal with them.