Home / 7,933.82-11,900.86-3,005.78

Finding the Fourth Proportional to 7,933.82, 11,900.86 and 3,005.78

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Solution

The fourth proportional to 7,933.82, 11,900.86 and 3,005.78 is: 4,508.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,933.82 : 11,900.86 = 3,005.78 : x
  2. Step 2: Convert to fraction form
    7,933.82/11,900.86 = 3,005.78/x
  3. Step 3: Cross multiply
    7,933.82x = 11,900.86 × 3,005.78
  4. Step 4: Simplify right side
    7,933.82x = 35,771,299.95
  5. Step 5: Solve for x
    x = 35,771,299.95/7,933.82
  6. Step 6: Final answer
    x = 4,508.71

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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.