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Finding the Fourth Proportional to 3,672.72, 5,065.92 and 2,274

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Solution

The fourth proportional to 3,672.72, 5,065.92 and 2,274 is: 3,136.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,672.72 : 5,065.92 = 2,274 : x
  2. Step 2: Convert to fraction form
    3,672.72/5,065.92 = 2,274/x
  3. Step 3: Cross multiply
    3,672.72x = 5,065.92 × 2,274
  4. Step 4: Simplify right side
    3,672.72x = 11,519,902.08
  5. Step 5: Solve for x
    x = 11,519,902.08/3,672.72
  6. Step 6: Final answer
    x = 3,136.61

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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.