Home / 7,945.92-11,920.50-2,399.04

Finding the Fourth Proportional to 7,945.92, 11,920.50 and 2,399.04

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Solution

The fourth proportional to 7,945.92, 11,920.50 and 2,399.04 is: 3,599.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,945.92 : 11,920.50 = 2,399.04 : x
  2. Step 2: Convert to fraction form
    7,945.92/11,920.50 = 2,399.04/x
  3. Step 3: Cross multiply
    7,945.92x = 11,920.50 × 2,399.04
  4. Step 4: Simplify right side
    7,945.92x = 28,597,756.32
  5. Step 5: Solve for x
    x = 28,597,756.32/7,945.92
  6. Step 6: Final answer
    x = 3,599.05

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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.