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Finding the Fourth Proportional to 7,899.32, 10,900.49 and 4,542.11

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Solution

The fourth proportional to 7,899.32, 10,900.49 and 4,542.11 is: 6,267.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,899.32 : 10,900.49 = 4,542.11 : x
  2. Step 2: Convert to fraction form
    7,899.32/10,900.49 = 4,542.11/x
  3. Step 3: Cross multiply
    7,899.32x = 10,900.49 × 4,542.11
  4. Step 4: Simplify right side
    7,899.32x = 49,511,147.42
  5. Step 5: Solve for x
    x = 49,511,147.42/7,899.32
  6. Step 6: Final answer
    x = 6,267.78

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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.