Home / 7,949.97-11,920.91-3,015.86

Finding the Fourth Proportional to 7,949.97, 11,920.91 and 3,015.86

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Solution

The fourth proportional to 7,949.97, 11,920.91 and 3,015.86 is: 4,522.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,949.97 : 11,920.91 = 3,015.86 : x
  2. Step 2: Convert to fraction form
    7,949.97/11,920.91 = 3,015.86/x
  3. Step 3: Cross multiply
    7,949.97x = 11,920.91 × 3,015.86
  4. Step 4: Simplify right side
    7,949.97x = 35,951,720.95
  5. Step 5: Solve for x
    x = 35,951,720.95/7,949.97
  6. Step 6: Final answer
    x = 4,522.25

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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.