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Finding the Fourth Proportional to 6,662.64, 9,193.80 and 3,677.76

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Solution

The fourth proportional to 6,662.64, 9,193.80 and 3,677.76 is: 5,074.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,662.64 : 9,193.80 = 3,677.76 : x
  2. Step 2: Convert to fraction form
    6,662.64/9,193.80 = 3,677.76/x
  3. Step 3: Cross multiply
    6,662.64x = 9,193.80 × 3,677.76
  4. Step 4: Simplify right side
    6,662.64x = 33,812,589.89
  5. Step 5: Solve for x
    x = 33,812,589.89/6,662.64
  6. Step 6: Final answer
    x = 5,074.95

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Why These Related Problems?

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