Home / 7,449.86-11,174.82-2,255.78

Finding the Fourth Proportional to 7,449.86, 11,174.82 and 2,255.78

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Solution

The fourth proportional to 7,449.86, 11,174.82 and 2,255.78 is: 3,383.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,449.86 : 11,174.82 = 2,255.78 : x
  2. Step 2: Convert to fraction form
    7,449.86/11,174.82 = 2,255.78/x
  3. Step 3: Cross multiply
    7,449.86x = 11,174.82 × 2,255.78
  4. Step 4: Simplify right side
    7,449.86x = 25,207,935.46
  5. Step 5: Solve for x
    x = 25,207,935.46/7,449.86
  6. Step 6: Final answer
    x = 3,383.68

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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.