Home / 6,979.94-9,633.97-3,997.49

Finding the Fourth Proportional to 6,979.94, 9,633.97 and 3,997.49

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Solution

The fourth proportional to 6,979.94, 9,633.97 and 3,997.49 is: 5,517.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,979.94 : 9,633.97 = 3,997.49 : x
  2. Step 2: Convert to fraction form
    6,979.94/9,633.97 = 3,997.49/x
  3. Step 3: Cross multiply
    6,979.94x = 9,633.97 × 3,997.49
  4. Step 4: Simplify right side
    6,979.94x = 38,511,655.56
  5. Step 5: Solve for x
    x = 38,511,655.56/6,979.94
  6. Step 6: Final answer
    x = 5,517.48

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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.