Home / 4,112.25-6,168.68-1,338.71

Finding the Fourth Proportional to 4,112.25, 6,168.68 and 1,338.71

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Solution

The fourth proportional to 4,112.25, 6,168.68 and 1,338.71 is: 2,008.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,112.25 : 6,168.68 = 1,338.71 : x
  2. Step 2: Convert to fraction form
    4,112.25/6,168.68 = 1,338.71/x
  3. Step 3: Cross multiply
    4,112.25x = 6,168.68 × 1,338.71
  4. Step 4: Simplify right side
    4,112.25x = 8,258,073.60
  5. Step 5: Solve for x
    x = 8,258,073.60/4,112.25
  6. Step 6: Final answer
    x = 2,008.16

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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.