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Finding the Fourth Proportional to 7,352.92, 10,144.56 and 4,990.96

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Solution

The fourth proportional to 7,352.92, 10,144.56 and 4,990.96 is: 6,885.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,352.92 : 10,144.56 = 4,990.96 : x
  2. Step 2: Convert to fraction form
    7,352.92/10,144.56 = 4,990.96/x
  3. Step 3: Cross multiply
    7,352.92x = 10,144.56 × 4,990.96
  4. Step 4: Simplify right side
    7,352.92x = 50,631,093.18
  5. Step 5: Solve for x
    x = 50,631,093.18/7,352.92
  6. Step 6: Final answer
    x = 6,885.85

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.