Home / 3,470.26-5,205.82-1,279

Finding the Fourth Proportional to 3,470.26, 5,205.82 and 1,279

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Solution

The fourth proportional to 3,470.26, 5,205.82 and 1,279 is: 1,918.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,470.26 : 5,205.82 = 1,279 : x
  2. Step 2: Convert to fraction form
    3,470.26/5,205.82 = 1,279/x
  3. Step 3: Cross multiply
    3,470.26x = 5,205.82 × 1,279
  4. Step 4: Simplify right side
    3,470.26x = 6,658,243.78
  5. Step 5: Solve for x
    x = 6,658,243.78/3,470.26
  6. Step 6: Final answer
    x = 1,918.66

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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.