Four partially entangled two-particle states are used as the quantum channel. Two schemes for probabilistic teleportation of an arbitrary four-particle entangled state are presented. The entangled state can be perfectly teleported probabilistically from the sender to the receiver if the sender performs four Bell-state measurements while the receiver introduces auxiliary particles and performing appropriate unitary transformations. Based on transformation operator,the theoretical explanation of two schemes is given by utilizing the relation of the transformation operators.