Home / 5,754.28-7,937.70-3,986.92

Finding the Fourth Proportional to 5,754.28, 7,937.70 and 3,986.92

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Solution

The fourth proportional to 5,754.28, 7,937.70 and 3,986.92 is: 5,499.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,754.28 : 7,937.70 = 3,986.92 : x
  2. Step 2: Convert to fraction form
    5,754.28/7,937.70 = 3,986.92/x
  3. Step 3: Cross multiply
    5,754.28x = 7,937.70 × 3,986.92
  4. Step 4: Simplify right side
    5,754.28x = 31,646,974.88
  5. Step 5: Solve for x
    x = 31,646,974.88/5,754.28
  6. Step 6: Final answer
    x = 5,499.73

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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.