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Finding the Fourth Proportional to 2,169.31, 3,253.97 and 525.86

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Solution

The fourth proportional to 2,169.31, 3,253.97 and 525.86 is: 788.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,169.31 : 3,253.97 = 525.86 : x
  2. Step 2: Convert to fraction form
    2,169.31/3,253.97 = 525.86/x
  3. Step 3: Cross multiply
    2,169.31x = 3,253.97 × 525.86
  4. Step 4: Simplify right side
    2,169.31x = 1,711,132.66
  5. Step 5: Solve for x
    x = 1,711,132.66/2,169.31
  6. Step 6: Final answer
    x = 788.79

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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.