Home / 3,721.28-5,581.22-1,256.04

Finding the Fourth Proportional to 3,721.28, 5,581.22 and 1,256.04

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Solution

The fourth proportional to 3,721.28, 5,581.22 and 1,256.04 is: 1,883.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721.28 : 5,581.22 = 1,256.04 : x
  2. Step 2: Convert to fraction form
    3,721.28/5,581.22 = 1,256.04/x
  3. Step 3: Cross multiply
    3,721.28x = 5,581.22 × 1,256.04
  4. Step 4: Simplify right side
    3,721.28x = 7,010,229.29
  5. Step 5: Solve for x
    x = 7,010,229.29/3,721.28
  6. Step 6: Final answer
    x = 1,883.82

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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.