Home / 7,961.86-11,944.97-2,415.38

Finding the Fourth Proportional to 7,961.86, 11,944.97 and 2,415.38

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Solution

The fourth proportional to 7,961.86, 11,944.97 and 2,415.38 is: 3,623.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,961.86 : 11,944.97 = 2,415.38 : x
  2. Step 2: Convert to fraction form
    7,961.86/11,944.97 = 2,415.38/x
  3. Step 3: Cross multiply
    7,961.86x = 11,944.97 × 2,415.38
  4. Step 4: Simplify right side
    7,961.86x = 28,851,629.56
  5. Step 5: Solve for x
    x = 28,851,629.56/7,961.86
  6. Step 6: Final answer
    x = 3,623.73

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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.