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Finding the Fourth Proportional to 6,454.16, 8,909.69 and 4,961.55

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Solution

The fourth proportional to 6,454.16, 8,909.69 and 4,961.55 is: 6,849.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,454.16 : 8,909.69 = 4,961.55 : x
  2. Step 2: Convert to fraction form
    6,454.16/8,909.69 = 4,961.55/x
  3. Step 3: Cross multiply
    6,454.16x = 8,909.69 × 4,961.55
  4. Step 4: Simplify right side
    6,454.16x = 44,205,847.61
  5. Step 5: Solve for x
    x = 44,205,847.61/6,454.16
  6. Step 6: Final answer
    x = 6,849.21

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1.5x scale

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.