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Finding the Fourth Proportional to 5,474.70, 8,255.57 and 4,869.90

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Solution

The fourth proportional to 5,474.70, 8,255.57 and 4,869.90 is: 7,343.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,474.70 : 8,255.57 = 4,869.90 : x
  2. Step 2: Convert to fraction form
    5,474.70/8,255.57 = 4,869.90/x
  3. Step 3: Cross multiply
    5,474.70x = 8,255.57 × 4,869.90
  4. Step 4: Simplify right side
    5,474.70x = 40,203,775.99
  5. Step 5: Solve for x
    x = 40,203,775.99/5,474.70
  6. Step 6: Final answer
    x = 7,343.56

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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.