Home / 3,580.97-5,371.22-2,129.36

Finding the Fourth Proportional to 3,580.97, 5,371.22 and 2,129.36

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Solution

The fourth proportional to 3,580.97, 5,371.22 and 2,129.36 is: 3,193.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,580.97 : 5,371.22 = 2,129.36 : x
  2. Step 2: Convert to fraction form
    3,580.97/5,371.22 = 2,129.36/x
  3. Step 3: Cross multiply
    3,580.97x = 5,371.22 × 2,129.36
  4. Step 4: Simplify right side
    3,580.97x = 11,437,223.52
  5. Step 5: Solve for x
    x = 11,437,223.52/3,580.97
  6. Step 6: Final answer
    x = 3,193.89

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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.