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Finding the Fourth Proportional to 3,378.38, 4,660.38 and 2,749.62

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Solution

The fourth proportional to 3,378.38, 4,660.38 and 2,749.62 is: 3,793.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378.38 : 4,660.38 = 2,749.62 : x
  2. Step 2: Convert to fraction form
    3,378.38/4,660.38 = 2,749.62/x
  3. Step 3: Cross multiply
    3,378.38x = 4,660.38 × 2,749.62
  4. Step 4: Simplify right side
    3,378.38x = 12,814,274.06
  5. Step 5: Solve for x
    x = 12,814,274.06/3,378.38
  6. Step 6: Final answer
    x = 3,793.02

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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.