Home / 4,147.92-5,724.36-2,749.68

Finding the Fourth Proportional to 4,147.92, 5,724.36 and 2,749.68

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Solution

The fourth proportional to 4,147.92, 5,724.36 and 2,749.68 is: 3,794.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,147.92 : 5,724.36 = 2,749.68 : x
  2. Step 2: Convert to fraction form
    4,147.92/5,724.36 = 2,749.68/x
  3. Step 3: Cross multiply
    4,147.92x = 5,724.36 × 2,749.68
  4. Step 4: Simplify right side
    4,147.92x = 15,740,158.20
  5. Step 5: Solve for x
    x = 15,740,158.20/4,147.92
  6. Step 6: Final answer
    x = 3,794.71

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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.