Home / 3,397.68-5,100.30-3,138.48

Finding the Fourth Proportional to 3,397.68, 5,100.30 and 3,138.48

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Solution

The fourth proportional to 3,397.68, 5,100.30 and 3,138.48 is: 4,711.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,397.68 : 5,100.30 = 3,138.48 : x
  2. Step 2: Convert to fraction form
    3,397.68/5,100.30 = 3,138.48/x
  3. Step 3: Cross multiply
    3,397.68x = 5,100.30 × 3,138.48
  4. Step 4: Simplify right side
    3,397.68x = 16,007,189.54
  5. Step 5: Solve for x
    x = 16,007,189.54/3,397.68
  6. Step 6: Final answer
    x = 4,711.21

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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.