Home / 3,136.50-4,329.99-2,143.17

Finding the Fourth Proportional to 3,136.50, 4,329.99 and 2,143.17

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Solution

The fourth proportional to 3,136.50, 4,329.99 and 2,143.17 is: 2,958.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,136.50 : 4,329.99 = 2,143.17 : x
  2. Step 2: Convert to fraction form
    3,136.50/4,329.99 = 2,143.17/x
  3. Step 3: Cross multiply
    3,136.50x = 4,329.99 × 2,143.17
  4. Step 4: Simplify right side
    3,136.50x = 9,279,904.67
  5. Step 5: Solve for x
    x = 9,279,904.67/3,136.50
  6. Step 6: Final answer
    x = 2,958.68

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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.