Home / 6,982.91-9,636.17-3,839.07

Finding the Fourth Proportional to 6,982.91, 9,636.17 and 3,839.07

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Solution

The fourth proportional to 6,982.91, 9,636.17 and 3,839.07 is: 5,297.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,982.91 : 9,636.17 = 3,839.07 : x
  2. Step 2: Convert to fraction form
    6,982.91/9,636.17 = 3,839.07/x
  3. Step 3: Cross multiply
    6,982.91x = 9,636.17 × 3,839.07
  4. Step 4: Simplify right side
    6,982.91x = 36,993,911.97
  5. Step 5: Solve for x
    x = 36,993,911.97/6,982.91
  6. Step 6: Final answer
    x = 5,297.78

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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.