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Finding the Fourth Proportional to 5,770.80, 8,656.20 and 5,649.30

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Solution

The fourth proportional to 5,770.80, 8,656.20 and 5,649.30 is: 8,473.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,770.80 : 8,656.20 = 5,649.30 : x
  2. Step 2: Convert to fraction form
    5,770.80/8,656.20 = 5,649.30/x
  3. Step 3: Cross multiply
    5,770.80x = 8,656.20 × 5,649.30
  4. Step 4: Simplify right side
    5,770.80x = 48,901,470.66
  5. Step 5: Solve for x
    x = 48,901,470.66/5,770.80
  6. Step 6: Final answer
    x = 8,473.95

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Similar ratio
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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.