Home / 6,979.79-9,633.74-3,997.33

Finding the Fourth Proportional to 6,979.79, 9,633.74 and 3,997.33

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Solution

The fourth proportional to 6,979.79, 9,633.74 and 3,997.33 is: 5,517.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,979.79 : 9,633.74 = 3,997.33 : x
  2. Step 2: Convert to fraction form
    6,979.79/9,633.74 = 3,997.33/x
  3. Step 3: Cross multiply
    6,979.79x = 9,633.74 × 3,997.33
  4. Step 4: Simplify right side
    6,979.79x = 38,509,237.91
  5. Step 5: Solve for x
    x = 38,509,237.91/6,979.79
  6. Step 6: Final answer
    x = 5,517.25

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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.