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Finding the Fourth Proportional to 11,105.88, 16,658.82 and 2,897.88

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Solution

The fourth proportional to 11,105.88, 16,658.82 and 2,897.88 is: 4,346.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,105.88 : 16,658.82 = 2,897.88 : x
  2. Step 2: Convert to fraction form
    11,105.88/16,658.82 = 2,897.88/x
  3. Step 3: Cross multiply
    11,105.88x = 16,658.82 × 2,897.88
  4. Step 4: Simplify right side
    11,105.88x = 48,275,163.52
  5. Step 5: Solve for x
    x = 48,275,163.52/11,105.88
  6. Step 6: Final answer
    x = 4,346.81

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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.