Home / 3,761.57-5,643.27-1,129.07

Finding the Fourth Proportional to 3,761.57, 5,643.27 and 1,129.07

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Solution

The fourth proportional to 3,761.57, 5,643.27 and 1,129.07 is: 1,693.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,761.57 : 5,643.27 = 1,129.07 : x
  2. Step 2: Convert to fraction form
    3,761.57/5,643.27 = 1,129.07/x
  3. Step 3: Cross multiply
    3,761.57x = 5,643.27 × 1,129.07
  4. Step 4: Simplify right side
    3,761.57x = 6,371,660.97
  5. Step 5: Solve for x
    x = 6,371,660.97/3,761.57
  6. Step 6: Final answer
    x = 1,693.88

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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.