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Finding the Fourth Proportional to 3,002.78, 4,505.52 and 1,906.85

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Solution

The fourth proportional to 3,002.78, 4,505.52 and 1,906.85 is: 2,861.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,002.78 : 4,505.52 = 1,906.85 : x
  2. Step 2: Convert to fraction form
    3,002.78/4,505.52 = 1,906.85/x
  3. Step 3: Cross multiply
    3,002.78x = 4,505.52 × 1,906.85
  4. Step 4: Simplify right side
    3,002.78x = 8,591,350.81
  5. Step 5: Solve for x
    x = 8,591,350.81/3,002.78
  6. Step 6: Final answer
    x = 2,861.13

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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.