Home / 7,538.10-11,306.97-1,991.83

Finding the Fourth Proportional to 7,538.10, 11,306.97 and 1,991.83

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Solution

The fourth proportional to 7,538.10, 11,306.97 and 1,991.83 is: 2,987.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,538.10 : 11,306.97 = 1,991.83 : x
  2. Step 2: Convert to fraction form
    7,538.10/11,306.97 = 1,991.83/x
  3. Step 3: Cross multiply
    7,538.10x = 11,306.97 × 1,991.83
  4. Step 4: Simplify right side
    7,538.10x = 22,521,562.06
  5. Step 5: Solve for x
    x = 22,521,562.06/7,538.10
  6. Step 6: Final answer
    x = 2,987.70

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Similar ratio
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1.5x scale

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.