Home / 3,997.14-5,511.15-3,286.50

Finding the Fourth Proportional to 3,997.14, 5,511.15 and 3,286.50

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Solution

The fourth proportional to 3,997.14, 5,511.15 and 3,286.50 is: 4,531.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,997.14 : 5,511.15 = 3,286.50 : x
  2. Step 2: Convert to fraction form
    3,997.14/5,511.15 = 3,286.50/x
  3. Step 3: Cross multiply
    3,997.14x = 5,511.15 × 3,286.50
  4. Step 4: Simplify right side
    3,997.14x = 18,112,394.48
  5. Step 5: Solve for x
    x = 18,112,394.48/3,997.14
  6. Step 6: Final answer
    x = 4,531.34

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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.