Home / 3,877.26-5,350.74-2,109

Finding the Fourth Proportional to 3,877.26, 5,350.74 and 2,109

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Solution

The fourth proportional to 3,877.26, 5,350.74 and 2,109 is: 2,910.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,877.26 : 5,350.74 = 2,109 : x
  2. Step 2: Convert to fraction form
    3,877.26/5,350.74 = 2,109/x
  3. Step 3: Cross multiply
    3,877.26x = 5,350.74 × 2,109
  4. Step 4: Simplify right side
    3,877.26x = 11,284,710.66
  5. Step 5: Solve for x
    x = 11,284,710.66/3,877.26
  6. Step 6: Final answer
    x = 2,910.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.