Home / 7,481.97-11,219.01-3,320.17

Finding the Fourth Proportional to 7,481.97, 11,219.01 and 3,320.17

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Solution

The fourth proportional to 7,481.97, 11,219.01 and 3,320.17 is: 4,978.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,481.97 : 11,219.01 = 3,320.17 : x
  2. Step 2: Convert to fraction form
    7,481.97/11,219.01 = 3,320.17/x
  3. Step 3: Cross multiply
    7,481.97x = 11,219.01 × 3,320.17
  4. Step 4: Simplify right side
    7,481.97x = 37,248,958.90
  5. Step 5: Solve for x
    x = 37,248,958.90/7,481.97
  6. Step 6: Final answer
    x = 4,978.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.