Home / 8,861.38-13,291.74-2,197.90

Finding the Fourth Proportional to 8,861.38, 13,291.74 and 2,197.90

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Solution

The fourth proportional to 8,861.38, 13,291.74 and 2,197.90 is: 3,296.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,861.38 : 13,291.74 = 2,197.90 : x
  2. Step 2: Convert to fraction form
    8,861.38/13,291.74 = 2,197.90/x
  3. Step 3: Cross multiply
    8,861.38x = 13,291.74 × 2,197.90
  4. Step 4: Simplify right side
    8,861.38x = 29,213,848.89
  5. Step 5: Solve for x
    x = 29,213,848.89/8,861.38
  6. Step 6: Final answer
    x = 3,296.76

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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.