Home / 7,983.19-11,974.83-2,789.02

Finding the Fourth Proportional to 7,983.19, 11,974.83 and 2,789.02

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Solution

The fourth proportional to 7,983.19, 11,974.83 and 2,789.02 is: 4,183.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,983.19 : 11,974.83 = 2,789.02 : x
  2. Step 2: Convert to fraction form
    7,983.19/11,974.83 = 2,789.02/x
  3. Step 3: Cross multiply
    7,983.19x = 11,974.83 × 2,789.02
  4. Step 4: Simplify right side
    7,983.19x = 33,398,040.37
  5. Step 5: Solve for x
    x = 33,398,040.37/7,983.19
  6. Step 6: Final answer
    x = 4,183.55

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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.