Home / 3,581.68-5,371.16-2,121.24

Finding the Fourth Proportional to 3,581.68, 5,371.16 and 2,121.24

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Solution

The fourth proportional to 3,581.68, 5,371.16 and 2,121.24 is: 3,181.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,581.68 : 5,371.16 = 2,121.24 : x
  2. Step 2: Convert to fraction form
    3,581.68/5,371.16 = 2,121.24/x
  3. Step 3: Cross multiply
    3,581.68x = 5,371.16 × 2,121.24
  4. Step 4: Simplify right side
    3,581.68x = 11,393,519.44
  5. Step 5: Solve for x
    x = 11,393,519.44/3,581.68
  6. Step 6: Final answer
    x = 3,181.05

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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.