Home / 3,923.36-5,414.20-2,245.28

Finding the Fourth Proportional to 3,923.36, 5,414.20 and 2,245.28

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Solution

The fourth proportional to 3,923.36, 5,414.20 and 2,245.28 is: 3,098.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,923.36 : 5,414.20 = 2,245.28 : x
  2. Step 2: Convert to fraction form
    3,923.36/5,414.20 = 2,245.28/x
  3. Step 3: Cross multiply
    3,923.36x = 5,414.20 × 2,245.28
  4. Step 4: Simplify right side
    3,923.36x = 12,156,394.98
  5. Step 5: Solve for x
    x = 12,156,394.98/3,923.36
  6. Step 6: Final answer
    x = 3,098.47

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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.