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Finding the Fourth Proportional to 5,572.80, 8,375.40 and 5,475.60

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Solution

The fourth proportional to 5,572.80, 8,375.40 and 5,475.60 is: 8,229.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,572.80 : 8,375.40 = 5,475.60 : x
  2. Step 2: Convert to fraction form
    5,572.80/8,375.40 = 5,475.60/x
  3. Step 3: Cross multiply
    5,572.80x = 8,375.40 × 5,475.60
  4. Step 4: Simplify right side
    5,572.80x = 45,860,340.24
  5. Step 5: Solve for x
    x = 45,860,340.24/5,572.80
  6. Step 6: Final answer
    x = 8,229.32

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.