Home / 3,443.28-4,775.36-3,229.44

Finding the Fourth Proportional to 3,443.28, 4,775.36 and 3,229.44

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Solution

The fourth proportional to 3,443.28, 4,775.36 and 3,229.44 is: 4,478.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,443.28 : 4,775.36 = 3,229.44 : x
  2. Step 2: Convert to fraction form
    3,443.28/4,775.36 = 3,229.44/x
  3. Step 3: Cross multiply
    3,443.28x = 4,775.36 × 3,229.44
  4. Step 4: Simplify right side
    3,443.28x = 15,421,738.60
  5. Step 5: Solve for x
    x = 15,421,738.60/3,443.28
  6. Step 6: Final answer
    x = 4,478.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.