Home / 3,144.13-4,342.43-2,723.78

Finding the Fourth Proportional to 3,144.13, 4,342.43 and 2,723.78

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Solution

The fourth proportional to 3,144.13, 4,342.43 and 2,723.78 is: 3,761.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,144.13 : 4,342.43 = 2,723.78 : x
  2. Step 2: Convert to fraction form
    3,144.13/4,342.43 = 2,723.78/x
  3. Step 3: Cross multiply
    3,144.13x = 4,342.43 × 2,723.78
  4. Step 4: Simplify right side
    3,144.13x = 11,827,823.99
  5. Step 5: Solve for x
    x = 11,827,823.99/3,144.13
  6. Step 6: Final answer
    x = 3,761.87

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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.