Home / 6,839.50-9,439.26-3,856.06

Finding the Fourth Proportional to 6,839.50, 9,439.26 and 3,856.06

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Solution

The fourth proportional to 6,839.50, 9,439.26 and 3,856.06 is: 5,321.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,839.50 : 9,439.26 = 3,856.06 : x
  2. Step 2: Convert to fraction form
    6,839.50/9,439.26 = 3,856.06/x
  3. Step 3: Cross multiply
    6,839.50x = 9,439.26 × 3,856.06
  4. Step 4: Simplify right side
    6,839.50x = 36,398,352.92
  5. Step 5: Solve for x
    x = 36,398,352.92/6,839.50
  6. Step 6: Final answer
    x = 5,321.79

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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.