Home / 3,924.78-5,415.24-2,223.33

Finding the Fourth Proportional to 3,924.78, 5,415.24 and 2,223.33

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Solution

The fourth proportional to 3,924.78, 5,415.24 and 2,223.33 is: 3,067.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,924.78 : 5,415.24 = 2,223.33 : x
  2. Step 2: Convert to fraction form
    3,924.78/5,415.24 = 2,223.33/x
  3. Step 3: Cross multiply
    3,924.78x = 5,415.24 × 2,223.33
  4. Step 4: Simplify right side
    3,924.78x = 12,039,865.55
  5. Step 5: Solve for x
    x = 12,039,865.55/3,924.78
  6. Step 6: Final answer
    x = 3,067.65

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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.