Home / 3,981.66-5,977.11-2,136.38

Finding the Fourth Proportional to 3,981.66, 5,977.11 and 2,136.38

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Solution

The fourth proportional to 3,981.66, 5,977.11 and 2,136.38 is: 3,207.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.66 : 5,977.11 = 2,136.38 : x
  2. Step 2: Convert to fraction form
    3,981.66/5,977.11 = 2,136.38/x
  3. Step 3: Cross multiply
    3,981.66x = 5,977.11 × 2,136.38
  4. Step 4: Simplify right side
    3,981.66x = 12,769,348.38
  5. Step 5: Solve for x
    x = 12,769,348.38/3,981.66
  6. Step 6: Final answer
    x = 3,207.04

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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.