Home / 4,147.20-6,213.60-2,685.60

Finding the Fourth Proportional to 4,147.20, 6,213.60 and 2,685.60

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Solution

The fourth proportional to 4,147.20, 6,213.60 and 2,685.60 is: 4,023.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,147.20 : 6,213.60 = 2,685.60 : x
  2. Step 2: Convert to fraction form
    4,147.20/6,213.60 = 2,685.60/x
  3. Step 3: Cross multiply
    4,147.20x = 6,213.60 × 2,685.60
  4. Step 4: Simplify right side
    4,147.20x = 16,687,244.16
  5. Step 5: Solve for x
    x = 16,687,244.16/4,147.20
  6. Step 6: Final answer
    x = 4,023.74

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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.