Home / 3,418.38-5,128.79-1,568.54

Finding the Fourth Proportional to 3,418.38, 5,128.79 and 1,568.54

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Solution

The fourth proportional to 3,418.38, 5,128.79 and 1,568.54 is: 2,353.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.38 : 5,128.79 = 1,568.54 : x
  2. Step 2: Convert to fraction form
    3,418.38/5,128.79 = 1,568.54/x
  3. Step 3: Cross multiply
    3,418.38x = 5,128.79 × 1,568.54
  4. Step 4: Simplify right side
    3,418.38x = 8,044,717.25
  5. Step 5: Solve for x
    x = 8,044,717.25/3,418.38
  6. Step 6: Final answer
    x = 2,353.37

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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.