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Finding the Fourth Proportional to 2,732.53, 4,099.49 and 784.73

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Solution

The fourth proportional to 2,732.53, 4,099.49 and 784.73 is: 1,177.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,732.53 : 4,099.49 = 784.73 : x
  2. Step 2: Convert to fraction form
    2,732.53/4,099.49 = 784.73/x
  3. Step 3: Cross multiply
    2,732.53x = 4,099.49 × 784.73
  4. Step 4: Simplify right side
    2,732.53x = 3,216,992.79
  5. Step 5: Solve for x
    x = 3,216,992.79/2,732.53
  6. Step 6: Final answer
    x = 1,177.29

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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.