Home / 6,981.59-9,635.05-3,997.82

Finding the Fourth Proportional to 6,981.59, 9,635.05 and 3,997.82

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Solution

The fourth proportional to 6,981.59, 9,635.05 and 3,997.82 is: 5,517.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,981.59 : 9,635.05 = 3,997.82 : x
  2. Step 2: Convert to fraction form
    6,981.59/9,635.05 = 3,997.82/x
  3. Step 3: Cross multiply
    6,981.59x = 9,635.05 × 3,997.82
  4. Step 4: Simplify right side
    6,981.59x = 38,519,224.68
  5. Step 5: Solve for x
    x = 38,519,224.68/6,981.59
  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.