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Finding the Fourth Proportional to 5,493.60, 8,229.60 and 5,104.80

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Solution

The fourth proportional to 5,493.60, 8,229.60 and 5,104.80 is: 7,647.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,493.60 : 8,229.60 = 5,104.80 : x
  2. Step 2: Convert to fraction form
    5,493.60/8,229.60 = 5,104.80/x
  3. Step 3: Cross multiply
    5,493.60x = 8,229.60 × 5,104.80
  4. Step 4: Simplify right side
    5,493.60x = 42,010,462.08
  5. Step 5: Solve for x
    x = 42,010,462.08/5,493.60
  6. Step 6: Final answer
    x = 7,647.16

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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.