Home / 1,081.20-1,619.88-737.52

Finding the Fourth Proportional to 1,081.20, 1,619.88 and 737.52

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Solution

The fourth proportional to 1,081.20, 1,619.88 and 737.52 is: 1,104.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,081.20 : 1,619.88 = 737.52 : x
  2. Step 2: Convert to fraction form
    1,081.20/1,619.88 = 737.52/x
  3. Step 3: Cross multiply
    1,081.20x = 1,619.88 × 737.52
  4. Step 4: Simplify right side
    1,081.20x = 1,194,693.90
  5. Step 5: Solve for x
    x = 1,194,693.90/1,081.20
  6. Step 6: Final answer
    x = 1,104.97

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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.