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Finding the Fourth Proportional to 5,115.04, 7,662.48 and 4,755.04

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Solution

The fourth proportional to 5,115.04, 7,662.48 and 4,755.04 is: 7,123.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,115.04 : 7,662.48 = 4,755.04 : x
  2. Step 2: Convert to fraction form
    5,115.04/7,662.48 = 4,755.04/x
  3. Step 3: Cross multiply
    5,115.04x = 7,662.48 × 4,755.04
  4. Step 4: Simplify right side
    5,115.04x = 36,435,398.90
  5. Step 5: Solve for x
    x = 36,435,398.90/5,115.04
  6. Step 6: Final answer
    x = 7,123.19

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1.5x scale

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.