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Finding the Fourth Proportional to 6,883.85, 9,498.76 and 3,899.61

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Solution

The fourth proportional to 6,883.85, 9,498.76 and 3,899.61 is: 5,380.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,883.85 : 9,498.76 = 3,899.61 : x
  2. Step 2: Convert to fraction form
    6,883.85/9,498.76 = 3,899.61/x
  3. Step 3: Cross multiply
    6,883.85x = 9,498.76 × 3,899.61
  4. Step 4: Simplify right side
    6,883.85x = 37,041,449.73
  5. Step 5: Solve for x
    x = 37,041,449.73/6,883.85
  6. Step 6: Final answer
    x = 5,380.92

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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.