Home / 3,923.75-5,414.90-2,245.16

Finding the Fourth Proportional to 3,923.75, 5,414.90 and 2,245.16

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Solution

The fourth proportional to 3,923.75, 5,414.90 and 2,245.16 is: 3,098.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,923.75 : 5,414.90 = 2,245.16 : x
  2. Step 2: Convert to fraction form
    3,923.75/5,414.90 = 2,245.16/x
  3. Step 3: Cross multiply
    3,923.75x = 5,414.90 × 2,245.16
  4. Step 4: Simplify right side
    3,923.75x = 12,157,278.58
  5. Step 5: Solve for x
    x = 12,157,278.58/3,923.75
  6. Step 6: Final answer
    x = 3,098.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.