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Finding the Fourth Proportional to 5,872.80, 8,809.20 and 5,373.60

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Solution

The fourth proportional to 5,872.80, 8,809.20 and 5,373.60 is: 8,060.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,872.80 : 8,809.20 = 5,373.60 : x
  2. Step 2: Convert to fraction form
    5,872.80/8,809.20 = 5,373.60/x
  3. Step 3: Cross multiply
    5,872.80x = 8,809.20 × 5,373.60
  4. Step 4: Simplify right side
    5,872.80x = 47,337,117.12
  5. Step 5: Solve for x
    x = 47,337,117.12/5,872.80
  6. Step 6: Final answer
    x = 8,060.40

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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.