Home / 3,965.60-5,475.10-2,549.90

Finding the Fourth Proportional to 3,965.60, 5,475.10 and 2,549.90

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Solution

The fourth proportional to 3,965.60, 5,475.10 and 2,549.90 is: 3,520.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,965.60 : 5,475.10 = 2,549.90 : x
  2. Step 2: Convert to fraction form
    3,965.60/5,475.10 = 2,549.90/x
  3. Step 3: Cross multiply
    3,965.60x = 5,475.10 × 2,549.90
  4. Step 4: Simplify right side
    3,965.60x = 13,960,957.49
  5. Step 5: Solve for x
    x = 13,960,957.49/3,965.60
  6. Step 6: Final answer
    x = 3,520.52

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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.