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Finding the Fourth Proportional to 2,704.91, 3,730.61 and 1,865.42

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Solution

The fourth proportional to 2,704.91, 3,730.61 and 1,865.42 is: 2,572.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,704.91 : 3,730.61 = 1,865.42 : x
  2. Step 2: Convert to fraction form
    2,704.91/3,730.61 = 1,865.42/x
  3. Step 3: Cross multiply
    2,704.91x = 3,730.61 × 1,865.42
  4. Step 4: Simplify right side
    2,704.91x = 6,959,126.53
  5. Step 5: Solve for x
    x = 6,959,126.53/2,704.91
  6. Step 6: Final answer
    x = 2,572.78

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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.