The measurement team put a one-meter-long bamboo pole upright on the ground and measured its shadow length to be 1.6 meters. At the same time, it measured the shadow length of the utility pole to be 4 meters. How many meters is the height of the utility pole?
测量小组把一米长的竹竿直立在地面上，测得它的影子长度是1.6米，同时测得电线杆的影子长度是4米，求电线杆高多少米？
<gadget id="calculator">1 / 1.6</gadget>
<output>0.625</output>

<gadget id="calculator">0.625 * 4</gadget>
<output>2.5</output>

<result>2.5</result>