Home / 1,081.11-1,620.45-532.14

Finding the Fourth Proportional to 1,081.11, 1,620.45 and 532.14

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Solution

The fourth proportional to 1,081.11, 1,620.45 and 532.14 is: 797.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,081.11 : 1,620.45 = 532.14 : x
  2. Step 2: Convert to fraction form
    1,081.11/1,620.45 = 532.14/x
  3. Step 3: Cross multiply
    1,081.11x = 1,620.45 × 532.14
  4. Step 4: Simplify right side
    1,081.11x = 862,306.26
  5. Step 5: Solve for x
    x = 862,306.26/1,081.11
  6. Step 6: Final answer
    x = 797.61

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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.