Home / 3,721.14-5,581.31-1,124.28

Finding the Fourth Proportional to 3,721.14, 5,581.31 and 1,124.28

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Solution

The fourth proportional to 3,721.14, 5,581.31 and 1,124.28 is: 1,686.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721.14 : 5,581.31 = 1,124.28 : x
  2. Step 2: Convert to fraction form
    3,721.14/5,581.31 = 1,124.28/x
  3. Step 3: Cross multiply
    3,721.14x = 5,581.31 × 1,124.28
  4. Step 4: Simplify right side
    3,721.14x = 6,274,949.59
  5. Step 5: Solve for x
    x = 6,274,949.59/3,721.14
  6. Step 6: Final answer
    x = 1,686.30

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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.