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Finding the Fourth Proportional to 7,951.41, 11,926.80 and 3,270.12

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Solution

The fourth proportional to 7,951.41, 11,926.80 and 3,270.12 is: 4,905.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,951.41 : 11,926.80 = 3,270.12 : x
  2. Step 2: Convert to fraction form
    7,951.41/11,926.80 = 3,270.12/x
  3. Step 3: Cross multiply
    7,951.41x = 11,926.80 × 3,270.12
  4. Step 4: Simplify right side
    7,951.41x = 39,002,067.22
  5. Step 5: Solve for x
    x = 39,002,067.22/7,951.41
  6. Step 6: Final answer
    x = 4,905.05

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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.