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Finding the Fourth Proportional to 3,616.40, 5,424.60 and 3,397.70

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Solution

The fourth proportional to 3,616.40, 5,424.60 and 3,397.70 is: 5,096.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,616.40 : 5,424.60 = 3,397.70 : x
  2. Step 2: Convert to fraction form
    3,616.40/5,424.60 = 3,397.70/x
  3. Step 3: Cross multiply
    3,616.40x = 5,424.60 × 3,397.70
  4. Step 4: Simplify right side
    3,616.40x = 18,431,163.42
  5. Step 5: Solve for x
    x = 18,431,163.42/3,616.40
  6. Step 6: Final answer
    x = 5,096.55

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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.