Atlanta is one win away from the 2nd round of the Western Conference playoffs, after taking a 3:1 lead in the series against New York.
The Hawks were convincing at home 113:96.
Tre Young led them with 27 points and nine assists, John Collins scored 22, Danilo Gallinari scored 21.
Bogdan Bogdanović had an excellent match - 12 points, eight rebounds and six assists.
Julius Rand scored 23 for New York.
The fifth match is played in Madison Square Garden.
Bonus video: