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Finding the Fourth Proportional to 4,491.78, 6,729.02 and 2,184.90

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Solution

The fourth proportional to 4,491.78, 6,729.02 and 2,184.90 is: 3,273.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,491.78 : 6,729.02 = 2,184.90 : x
  2. Step 2: Convert to fraction form
    4,491.78/6,729.02 = 2,184.90/x
  3. Step 3: Cross multiply
    4,491.78x = 6,729.02 × 2,184.90
  4. Step 4: Simplify right side
    4,491.78x = 14,702,235.80
  5. Step 5: Solve for x
    x = 14,702,235.80/4,491.78
  6. Step 6: Final answer
    x = 3,273.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.