Home / 3,939.19-5,908.79-1,342.13

Finding the Fourth Proportional to 3,939.19, 5,908.79 and 1,342.13

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Solution

The fourth proportional to 3,939.19, 5,908.79 and 1,342.13 is: 2,013.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939.19 : 5,908.79 = 1,342.13 : x
  2. Step 2: Convert to fraction form
    3,939.19/5,908.79 = 1,342.13/x
  3. Step 3: Cross multiply
    3,939.19x = 5,908.79 × 1,342.13
  4. Step 4: Simplify right side
    3,939.19x = 7,930,338.13
  5. Step 5: Solve for x
    x = 7,930,338.13/3,939.19
  6. Step 6: Final answer
    x = 2,013.19

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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.