Xiaolan is 1.5m tall. At a certain time and place, her shadow is 2.4m long. If at the same time and place, the shadow of a tree is 4m long, how many meters is the tree actually tall?
小兰身高1.5m，在某时、某地，她的影子长是2.4m，如果在同一时间和地点，测得一颗树的影子长4m，那么这棵树实际高多少米？
<gadget id="calculator">1.5 * 4</gadget>
<output>6</output>

<gadget id="calculator">6 / 2.4</gadget>
<output>2.5</output>

<result>2.5</result>