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Finding the Fourth Proportional to 7,702.80, 11,546.10 and 4,408.80

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Solution

The fourth proportional to 7,702.80, 11,546.10 and 4,408.80 is: 6,608.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,702.80 : 11,546.10 = 4,408.80 : x
  2. Step 2: Convert to fraction form
    7,702.80/11,546.10 = 4,408.80/x
  3. Step 3: Cross multiply
    7,702.80x = 11,546.10 × 4,408.80
  4. Step 4: Simplify right side
    7,702.80x = 50,904,445.68
  5. Step 5: Solve for x
    x = 50,904,445.68/7,702.80
  6. Step 6: Final answer
    x = 6,608.56

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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.