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Finding the Fourth Proportional to 3,808.42, 5,250.22 and 3,136.73

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Solution

The fourth proportional to 3,808.42, 5,250.22 and 3,136.73 is: 4,324.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,808.42 : 5,250.22 = 3,136.73 : x
  2. Step 2: Convert to fraction form
    3,808.42/5,250.22 = 3,136.73/x
  3. Step 3: Cross multiply
    3,808.42x = 5,250.22 × 3,136.73
  4. Step 4: Simplify right side
    3,808.42x = 16,468,488.49
  5. Step 5: Solve for x
    x = 16,468,488.49/3,808.42
  6. Step 6: Final answer
    x = 4,324.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.