Home / 3,378.60-5,067.90-2,146.86

Finding the Fourth Proportional to 3,378.60, 5,067.90 and 2,146.86

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Solution

The fourth proportional to 3,378.60, 5,067.90 and 2,146.86 is: 3,220.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378.60 : 5,067.90 = 2,146.86 : x
  2. Step 2: Convert to fraction form
    3,378.60/5,067.90 = 2,146.86/x
  3. Step 3: Cross multiply
    3,378.60x = 5,067.90 × 2,146.86
  4. Step 4: Simplify right side
    3,378.60x = 10,880,071.79
  5. Step 5: Solve for x
    x = 10,880,071.79/3,378.60
  6. Step 6: Final answer
    x = 3,220.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.