There are two cuboid pools whose inner sides are 4 meters and 3 meters long respectively. If a pile of gravel is placed in a small pool, the water level will rise by 4 cm. If this pile of gravel is placed in a large pool, by how many centimeters will the water level rise?
有两个正方体水池，它们的内边分别长4米和3米．把一堆碎石放在小水池里，水面升高4厘米，如果把这堆碎石放在大水池里，水面升高多少厘米？
<gadget id="calculator">4 / 100</gadget>
<output>1/25 = around 0.04</output>

<gadget id="calculator">3 * 3 * (1/25)</gadget>
<output>9/25 = around 0.36</output>

<gadget id="calculator">4 * 4</gadget>
<output>16</output>

<gadget id="calculator">(9/25) / 16</gadget>
<output>9/400 = around 0.0225</output>

<gadget id="calculator">(9/400) * 100</gadget>
<output>9/4 = around 2.25</output>

<result>9/4 = around 2.25</result>