Home / 3,581.44-5,371.68-1,389.96

Finding the Fourth Proportional to 3,581.44, 5,371.68 and 1,389.96

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Solution

The fourth proportional to 3,581.44, 5,371.68 and 1,389.96 is: 2,084.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,581.44 : 5,371.68 = 1,389.96 : x
  2. Step 2: Convert to fraction form
    3,581.44/5,371.68 = 1,389.96/x
  3. Step 3: Cross multiply
    3,581.44x = 5,371.68 × 1,389.96
  4. Step 4: Simplify right side
    3,581.44x = 7,466,420.33
  5. Step 5: Solve for x
    x = 7,466,420.33/3,581.44
  6. Step 6: Final answer
    x = 2,084.75

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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.