Home / 2,144.16-3,217.08-757.68

Finding the Fourth Proportional to 2,144.16, 3,217.08 and 757.68

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Solution

The fourth proportional to 2,144.16, 3,217.08 and 757.68 is: 1,136.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,144.16 : 3,217.08 = 757.68 : x
  2. Step 2: Convert to fraction form
    2,144.16/3,217.08 = 757.68/x
  3. Step 3: Cross multiply
    2,144.16x = 3,217.08 × 757.68
  4. Step 4: Simplify right side
    2,144.16x = 2,437,517.17
  5. Step 5: Solve for x
    x = 2,437,517.17/2,144.16
  6. Step 6: Final answer
    x = 1,136.82

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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.