Home / 3,581.10-5,371.62-1,391.37

Finding the Fourth Proportional to 3,581.10, 5,371.62 and 1,391.37

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Solution

The fourth proportional to 3,581.10, 5,371.62 and 1,391.37 is: 2,087.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,581.10 : 5,371.62 = 1,391.37 : x
  2. Step 2: Convert to fraction form
    3,581.10/5,371.62 = 1,391.37/x
  3. Step 3: Cross multiply
    3,581.10x = 5,371.62 × 1,391.37
  4. Step 4: Simplify right side
    3,581.10x = 7,473,910.92
  5. Step 5: Solve for x
    x = 7,473,910.92/3,581.10
  6. Step 6: Final answer
    x = 2,087.04

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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.