Home / 3,921.26-5,879.46-1,667.12

Finding the Fourth Proportional to 3,921.26, 5,879.46 and 1,667.12

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Solution

The fourth proportional to 3,921.26, 5,879.46 and 1,667.12 is: 2,499.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921.26 : 5,879.46 = 1,667.12 : x
  2. Step 2: Convert to fraction form
    3,921.26/5,879.46 = 1,667.12/x
  3. Step 3: Cross multiply
    3,921.26x = 5,879.46 × 1,667.12
  4. Step 4: Simplify right side
    3,921.26x = 9,801,780.05
  5. Step 5: Solve for x
    x = 9,801,780.05/3,921.26
  6. Step 6: Final answer
    x = 2,499.65

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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.