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Finding the Fourth Proportional to 6,429.59, 8,872.16 and 3,740.30

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Solution

The fourth proportional to 6,429.59, 8,872.16 and 3,740.30 is: 5,161.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,429.59 : 8,872.16 = 3,740.30 : x
  2. Step 2: Convert to fraction form
    6,429.59/8,872.16 = 3,740.30/x
  3. Step 3: Cross multiply
    6,429.59x = 8,872.16 × 3,740.30
  4. Step 4: Simplify right side
    6,429.59x = 33,184,545.73
  5. Step 5: Solve for x
    x = 33,184,545.73/6,429.59
  6. Step 6: Final answer
    x = 5,161.22

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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.