Home / 4,331.50-5,979.45-2,839.48

Finding the Fourth Proportional to 4,331.50, 5,979.45 and 2,839.48

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Solution

The fourth proportional to 4,331.50, 5,979.45 and 2,839.48 is: 3,919.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,331.50 : 5,979.45 = 2,839.48 : x
  2. Step 2: Convert to fraction form
    4,331.50/5,979.45 = 2,839.48/x
  3. Step 3: Cross multiply
    4,331.50x = 5,979.45 × 2,839.48
  4. Step 4: Simplify right side
    4,331.50x = 16,978,524.39
  5. Step 5: Solve for x
    x = 16,978,524.39/4,331.50
  6. Step 6: Final answer
    x = 3,919.78

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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.