Home / 1,446.20-2,169.23-579.90

Finding the Fourth Proportional to 1,446.20, 2,169.23 and 579.90

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Solution

The fourth proportional to 1,446.20, 2,169.23 and 579.90 is: 869.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,446.20 : 2,169.23 = 579.90 : x
  2. Step 2: Convert to fraction form
    1,446.20/2,169.23 = 579.90/x
  3. Step 3: Cross multiply
    1,446.20x = 2,169.23 × 579.90
  4. Step 4: Simplify right side
    1,446.20x = 1,257,933.58
  5. Step 5: Solve for x
    x = 1,257,933.58/1,446.20
  6. Step 6: Final answer
    x = 869.82

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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.