Home / 6,981.80-9,634.14-3,997.35

Finding the Fourth Proportional to 6,981.80, 9,634.14 and 3,997.35

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Solution

The fourth proportional to 6,981.80, 9,634.14 and 3,997.35 is: 5,515.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,981.80 : 9,634.14 = 3,997.35 : x
  2. Step 2: Convert to fraction form
    6,981.80/9,634.14 = 3,997.35/x
  3. Step 3: Cross multiply
    6,981.80x = 9,634.14 × 3,997.35
  4. Step 4: Simplify right side
    6,981.80x = 38,511,029.53
  5. Step 5: Solve for x
    x = 38,511,029.53/6,981.80
  6. Step 6: Final answer
    x = 5,515.92

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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.