Home / 3,447.36-5,179.68-2,215.44

Finding the Fourth Proportional to 3,447.36, 5,179.68 and 2,215.44

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Solution

The fourth proportional to 3,447.36, 5,179.68 and 2,215.44 is: 3,328.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,447.36 : 5,179.68 = 2,215.44 : x
  2. Step 2: Convert to fraction form
    3,447.36/5,179.68 = 2,215.44/x
  3. Step 3: Cross multiply
    3,447.36x = 5,179.68 × 2,215.44
  4. Step 4: Simplify right side
    3,447.36x = 11,475,270.26
  5. Step 5: Solve for x
    x = 11,475,270.26/3,447.36
  6. Step 6: Final answer
    x = 3,328.71

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1.5x scale

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.