Home / 7,869.19-11,799.71-2,321.83

Finding the Fourth Proportional to 7,869.19, 11,799.71 and 2,321.83

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Solution

The fourth proportional to 7,869.19, 11,799.71 and 2,321.83 is: 3,481.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,869.19 : 11,799.71 = 2,321.83 : x
  2. Step 2: Convert to fraction form
    7,869.19/11,799.71 = 2,321.83/x
  3. Step 3: Cross multiply
    7,869.19x = 11,799.71 × 2,321.83
  4. Step 4: Simplify right side
    7,869.19x = 27,396,850.06
  5. Step 5: Solve for x
    x = 27,396,850.06/7,869.19
  6. Step 6: Final answer
    x = 3,481.54

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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.