Home / 5,200.28-7,176.38-2,842.42

Finding the Fourth Proportional to 5,200.28, 7,176.38 and 2,842.42

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Solution

The fourth proportional to 5,200.28, 7,176.38 and 2,842.42 is: 3,922.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,200.28 : 7,176.38 = 2,842.42 : x
  2. Step 2: Convert to fraction form
    5,200.28/7,176.38 = 2,842.42/x
  3. Step 3: Cross multiply
    5,200.28x = 7,176.38 × 2,842.42
  4. Step 4: Simplify right side
    5,200.28x = 20,398,286.04
  5. Step 5: Solve for x
    x = 20,398,286.04/5,200.28
  6. Step 6: Final answer
    x = 3,922.54

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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.