Home / 3,981.41-5,976.73-2,136.14

Finding the Fourth Proportional to 3,981.41, 5,976.73 and 2,136.14

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Solution

The fourth proportional to 3,981.41, 5,976.73 and 2,136.14 is: 3,206.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.41 : 5,976.73 = 2,136.14 : x
  2. Step 2: Convert to fraction form
    3,981.41/5,976.73 = 2,136.14/x
  3. Step 3: Cross multiply
    3,981.41x = 5,976.73 × 2,136.14
  4. Step 4: Simplify right side
    3,981.41x = 12,767,102.14
  5. Step 5: Solve for x
    x = 12,767,102.14/3,981.41
  6. Step 6: Final answer
    x = 3,206.68

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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.