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Finding the Fourth Proportional to 6,436.92, 8,882.78 and 3,783.72

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Solution

The fourth proportional to 6,436.92, 8,882.78 and 3,783.72 is: 5,221.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,436.92 : 8,882.78 = 3,783.72 : x
  2. Step 2: Convert to fraction form
    6,436.92/8,882.78 = 3,783.72/x
  3. Step 3: Cross multiply
    6,436.92x = 8,882.78 × 3,783.72
  4. Step 4: Simplify right side
    6,436.92x = 33,609,952.34
  5. Step 5: Solve for x
    x = 33,609,952.34/6,436.92
  6. Step 6: Final answer
    x = 5,221.43

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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.