Home / 3,839.67-5,299.26-2,161.41

Finding the Fourth Proportional to 3,839.67, 5,299.26 and 2,161.41

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Solution

The fourth proportional to 3,839.67, 5,299.26 and 2,161.41 is: 2,983.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,839.67 : 5,299.26 = 2,161.41 : x
  2. Step 2: Convert to fraction form
    3,839.67/5,299.26 = 2,161.41/x
  3. Step 3: Cross multiply
    3,839.67x = 5,299.26 × 2,161.41
  4. Step 4: Simplify right side
    3,839.67x = 11,453,845.58
  5. Step 5: Solve for x
    x = 11,453,845.58/3,839.67
  6. Step 6: Final answer
    x = 2,983.03

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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.