Home / 4,112.56-6,169.35-1,338.49

Finding the Fourth Proportional to 4,112.56, 6,169.35 and 1,338.49

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Solution

The fourth proportional to 4,112.56, 6,169.35 and 1,338.49 is: 2,007.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,112.56 : 6,169.35 = 1,338.49 : x
  2. Step 2: Convert to fraction form
    4,112.56/6,169.35 = 1,338.49/x
  3. Step 3: Cross multiply
    4,112.56x = 6,169.35 × 1,338.49
  4. Step 4: Simplify right side
    4,112.56x = 8,257,579.09
  5. Step 5: Solve for x
    x = 8,257,579.09/4,112.56
  6. Step 6: Final answer
    x = 2,007.89

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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.