cuboid glass container, measured from the inside, has a length of 5 decimeters, a width of 3 decimeters, and a height of 4 decimeters. Pour 36L of water into the container, and then put a long enough cylindrical steel with a bottom area of 3 square decimeters vertically. When inserted into the water, the bottom surface of the cylindrical steel is completely in contact with the bottom surface of the container. How many decimeters is the water depth in the container at this time?
一个长方体玻璃容器，从里面量，长5分米，宽3分米，高4分米，向容器中倒入36L水，再把一段足够长的、底面积是3平方分米的圆柱钢材垂直插入水中，圆柱形钢材的底面与容器底面完全接触，这时容器内水深多少分米？
<gadget id="calculator">5 * 3</gadget>
<output>15</output>

<gadget id="calculator">36 / 15</gadget>
<output>12/5 = around 2.4</output>

<gadget id="calculator">(12/5) * 3</gadget>
<output>36/5 = around 7.2</output>

<gadget id="calculator">3 * 5</gadget>
<output>15</output>

<gadget id="calculator">(36/5) / 15</gadget>
<output>12/25 = around 0.48</output>

<gadget id="calculator">(12/5) + (12/25)</gadget>
<output>72/25 = around 2.88</output>

<result>72/25 = around 2.88</result>