Home / 3,712.49-5,569.38-1,247.55

Finding the Fourth Proportional to 3,712.49, 5,569.38 and 1,247.55

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Solution

The fourth proportional to 3,712.49, 5,569.38 and 1,247.55 is: 1,871.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,712.49 : 5,569.38 = 1,247.55 : x
  2. Step 2: Convert to fraction form
    3,712.49/5,569.38 = 1,247.55/x
  3. Step 3: Cross multiply
    3,712.49x = 5,569.38 × 1,247.55
  4. Step 4: Simplify right side
    3,712.49x = 6,948,080.02
  5. Step 5: Solve for x
    x = 6,948,080.02/3,712.49
  6. Step 6: Final answer
    x = 1,871.54

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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.