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Finding the Fourth Proportional to 3,752.68, 5,170.98 and 2,868.52

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Solution

The fourth proportional to 3,752.68, 5,170.98 and 2,868.52 is: 3,952.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,752.68 : 5,170.98 = 2,868.52 : x
  2. Step 2: Convert to fraction form
    3,752.68/5,170.98 = 2,868.52/x
  3. Step 3: Cross multiply
    3,752.68x = 5,170.98 × 2,868.52
  4. Step 4: Simplify right side
    3,752.68x = 14,833,059.55
  5. Step 5: Solve for x
    x = 14,833,059.55/3,752.68
  6. Step 6: Final answer
    x = 3,952.66

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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.