Home / 4,112.16-6,168.60-1,338.88

Finding the Fourth Proportional to 4,112.16, 6,168.60 and 1,338.88

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Solution

The fourth proportional to 4,112.16, 6,168.60 and 1,338.88 is: 2,008.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,112.16 : 6,168.60 = 1,338.88 : x
  2. Step 2: Convert to fraction form
    4,112.16/6,168.60 = 1,338.88/x
  3. Step 3: Cross multiply
    4,112.16x = 6,168.60 × 1,338.88
  4. Step 4: Simplify right side
    4,112.16x = 8,259,015.17
  5. Step 5: Solve for x
    x = 8,259,015.17/4,112.16
  6. Step 6: Final answer
    x = 2,008.44

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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.