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Finding the Fourth Proportional to 1,791.92, 2,690.15 and 1,708.83

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Solution

The fourth proportional to 1,791.92, 2,690.15 and 1,708.83 is: 2,565.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,791.92 : 2,690.15 = 1,708.83 : x
  2. Step 2: Convert to fraction form
    1,791.92/2,690.15 = 1,708.83/x
  3. Step 3: Cross multiply
    1,791.92x = 2,690.15 × 1,708.83
  4. Step 4: Simplify right side
    1,791.92x = 4,597,000.48
  5. Step 5: Solve for x
    x = 4,597,000.48/1,791.92
  6. Step 6: Final answer
    x = 2,565.40

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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.