Home / 7,191.26-10,786.88-1,997.14

Finding the Fourth Proportional to 7,191.26, 10,786.88 and 1,997.14

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Solution

The fourth proportional to 7,191.26, 10,786.88 and 1,997.14 is: 2,995.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,191.26 : 10,786.88 = 1,997.14 : x
  2. Step 2: Convert to fraction form
    7,191.26/10,786.88 = 1,997.14/x
  3. Step 3: Cross multiply
    7,191.26x = 10,786.88 × 1,997.14
  4. Step 4: Simplify right side
    7,191.26x = 21,542,909.52
  5. Step 5: Solve for x
    x = 21,542,909.52/7,191.26
  6. Step 6: Final answer
    x = 2,995.71

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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.