Home / 3,696.32-5,541.20-2,721.12

Finding the Fourth Proportional to 3,696.32, 5,541.20 and 2,721.12

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Solution

The fourth proportional to 3,696.32, 5,541.20 and 2,721.12 is: 4,079.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,696.32 : 5,541.20 = 2,721.12 : x
  2. Step 2: Convert to fraction form
    3,696.32/5,541.20 = 2,721.12/x
  3. Step 3: Cross multiply
    3,696.32x = 5,541.20 × 2,721.12
  4. Step 4: Simplify right side
    3,696.32x = 15,078,270.14
  5. Step 5: Solve for x
    x = 15,078,270.14/3,696.32
  6. Step 6: Final answer
    x = 4,079.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.