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Finding the Fourth Proportional to 6,839.06, 9,437.60 and 3,854.88

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Solution

The fourth proportional to 6,839.06, 9,437.60 and 3,854.88 is: 5,319.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,839.06 : 9,437.60 = 3,854.88 : x
  2. Step 2: Convert to fraction form
    6,839.06/9,437.60 = 3,854.88/x
  3. Step 3: Cross multiply
    6,839.06x = 9,437.60 × 3,854.88
  4. Step 4: Simplify right side
    6,839.06x = 36,380,815.49
  5. Step 5: Solve for x
    x = 36,380,815.49/6,839.06
  6. Step 6: Final answer
    x = 5,319.56

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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.