Home / 3,126.53-4,308.68-2,240.79

Finding the Fourth Proportional to 3,126.53, 4,308.68 and 2,240.79

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Solution

The fourth proportional to 3,126.53, 4,308.68 and 2,240.79 is: 3,088.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.53 : 4,308.68 = 2,240.79 : x
  2. Step 2: Convert to fraction form
    3,126.53/4,308.68 = 2,240.79/x
  3. Step 3: Cross multiply
    3,126.53x = 4,308.68 × 2,240.79
  4. Step 4: Simplify right side
    3,126.53x = 9,654,835.85
  5. Step 5: Solve for x
    x = 9,654,835.85/3,126.53
  6. Step 6: Final answer
    x = 3,088.04

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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.