Home / 5,205.42-7,183.68-2,847.60

Finding the Fourth Proportional to 5,205.42, 7,183.68 and 2,847.60

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Solution

The fourth proportional to 5,205.42, 7,183.68 and 2,847.60 is: 3,929.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,205.42 : 7,183.68 = 2,847.60 : x
  2. Step 2: Convert to fraction form
    5,205.42/7,183.68 = 2,847.60/x
  3. Step 3: Cross multiply
    5,205.42x = 7,183.68 × 2,847.60
  4. Step 4: Simplify right side
    5,205.42x = 20,456,247.17
  5. Step 5: Solve for x
    x = 20,456,247.17/5,205.42
  6. Step 6: Final answer
    x = 3,929.80

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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.