Home / 5,205.20-7,183.28-2,847.44

Finding the Fourth Proportional to 5,205.20, 7,183.28 and 2,847.44

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Solution

The fourth proportional to 5,205.20, 7,183.28 and 2,847.44 is: 3,929.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,205.20 : 7,183.28 = 2,847.44 : x
  2. Step 2: Convert to fraction form
    5,205.20/7,183.28 = 2,847.44/x
  3. Step 3: Cross multiply
    5,205.20x = 7,183.28 × 2,847.44
  4. Step 4: Simplify right side
    5,205.20x = 20,453,958.80
  5. Step 5: Solve for x
    x = 20,453,958.80/5,205.20
  6. Step 6: Final answer
    x = 3,929.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.