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Finding the Fourth Proportional to 3,708.47, 5,118.62 and 2,529.47

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Solution

The fourth proportional to 3,708.47, 5,118.62 and 2,529.47 is: 3,491.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,708.47 : 5,118.62 = 2,529.47 : x
  2. Step 2: Convert to fraction form
    3,708.47/5,118.62 = 2,529.47/x
  3. Step 3: Cross multiply
    3,708.47x = 5,118.62 × 2,529.47
  4. Step 4: Simplify right side
    3,708.47x = 12,947,395.88
  5. Step 5: Solve for x
    x = 12,947,395.88/3,708.47
  6. Step 6: Final answer
    x = 3,491.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.