Home / 1,441.20-2,160.54-574.92

Finding the Fourth Proportional to 1,441.20, 2,160.54 and 574.92

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Solution

The fourth proportional to 1,441.20, 2,160.54 and 574.92 is: 861.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,441.20 : 2,160.54 = 574.92 : x
  2. Step 2: Convert to fraction form
    1,441.20/2,160.54 = 574.92/x
  3. Step 3: Cross multiply
    1,441.20x = 2,160.54 × 574.92
  4. Step 4: Simplify right side
    1,441.20x = 1,242,137.66
  5. Step 5: Solve for x
    x = 1,242,137.66/1,441.20
  6. Step 6: Final answer
    x = 861.88

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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.