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Finding the Fourth Proportional to 1,682.16, 2,522.92 and 527.92

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Solution

The fourth proportional to 1,682.16, 2,522.92 and 527.92 is: 791.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,682.16 : 2,522.92 = 527.92 : x
  2. Step 2: Convert to fraction form
    1,682.16/2,522.92 = 527.92/x
  3. Step 3: Cross multiply
    1,682.16x = 2,522.92 × 527.92
  4. Step 4: Simplify right side
    1,682.16x = 1,331,899.93
  5. Step 5: Solve for x
    x = 1,331,899.93/1,682.16
  6. Step 6: Final answer
    x = 791.78

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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.