Home / 1,226.20-1,839.61-532.71

Finding the Fourth Proportional to 1,226.20, 1,839.61 and 532.71

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Solution

The fourth proportional to 1,226.20, 1,839.61 and 532.71 is: 799.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226.20 : 1,839.61 = 532.71 : x
  2. Step 2: Convert to fraction form
    1,226.20/1,839.61 = 532.71/x
  3. Step 3: Cross multiply
    1,226.20x = 1,839.61 × 532.71
  4. Step 4: Simplify right side
    1,226.20x = 979,969.45
  5. Step 5: Solve for x
    x = 979,969.45/1,226.20
  6. Step 6: Final answer
    x = 799.20

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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.