Home / 8,861.85-13,292.78-2,198.39

Finding the Fourth Proportional to 8,861.85, 13,292.78 and 2,198.39

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Solution

The fourth proportional to 8,861.85, 13,292.78 and 2,198.39 is: 3,297.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,861.85 : 13,292.78 = 2,198.39 : x
  2. Step 2: Convert to fraction form
    8,861.85/13,292.78 = 2,198.39/x
  3. Step 3: Cross multiply
    8,861.85x = 13,292.78 × 2,198.39
  4. Step 4: Simplify right side
    8,861.85x = 29,222,637.17
  5. Step 5: Solve for x
    x = 29,222,637.17/8,861.85
  6. Step 6: Final answer
    x = 3,297.58

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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.