Home / 5,108.28-7,049.28-2,839.56

Finding the Fourth Proportional to 5,108.28, 7,049.28 and 2,839.56

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Solution

The fourth proportional to 5,108.28, 7,049.28 and 2,839.56 is: 3,918.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,108.28 : 7,049.28 = 2,839.56 : x
  2. Step 2: Convert to fraction form
    5,108.28/7,049.28 = 2,839.56/x
  3. Step 3: Cross multiply
    5,108.28x = 7,049.28 × 2,839.56
  4. Step 4: Simplify right side
    5,108.28x = 20,016,853.52
  5. Step 5: Solve for x
    x = 20,016,853.52/5,108.28
  6. Step 6: Final answer
    x = 3,918.51

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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.