Home / 3,712.87-5,569.19-1,247.64

Finding the Fourth Proportional to 3,712.87, 5,569.19 and 1,247.64

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Solution

The fourth proportional to 3,712.87, 5,569.19 and 1,247.64 is: 1,871.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,712.87 : 5,569.19 = 1,247.64 : x
  2. Step 2: Convert to fraction form
    3,712.87/5,569.19 = 1,247.64/x
  3. Step 3: Cross multiply
    3,712.87x = 5,569.19 × 1,247.64
  4. Step 4: Simplify right side
    3,712.87x = 6,948,321.77
  5. Step 5: Solve for x
    x = 6,948,321.77/3,712.87
  6. Step 6: Final answer
    x = 1,871.41

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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.