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Finding the Fourth Proportional to 7,897.08, 11,843.22 and 3,279

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Solution

The fourth proportional to 7,897.08, 11,843.22 and 3,279 is: 4,917.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,897.08 : 11,843.22 = 3,279 : x
  2. Step 2: Convert to fraction form
    7,897.08/11,843.22 = 3,279/x
  3. Step 3: Cross multiply
    7,897.08x = 11,843.22 × 3,279
  4. Step 4: Simplify right side
    7,897.08x = 38,833,918.38
  5. Step 5: Solve for x
    x = 38,833,918.38/7,897.08
  6. Step 6: Final answer
    x = 4,917.50

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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.