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Finding the Fourth Proportional to 5,645.91, 8,474.03 and 2,874.49

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Solution

The fourth proportional to 5,645.91, 8,474.03 and 2,874.49 is: 4,314.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,645.91 : 8,474.03 = 2,874.49 : x
  2. Step 2: Convert to fraction form
    5,645.91/8,474.03 = 2,874.49/x
  3. Step 3: Cross multiply
    5,645.91x = 8,474.03 × 2,874.49
  4. Step 4: Simplify right side
    5,645.91x = 24,358,537.38
  5. Step 5: Solve for x
    x = 24,358,537.38/5,645.91
  6. Step 6: Final answer
    x = 4,314.37

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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.