Home / 3,906.72-5,391.36-2,334.24

Finding the Fourth Proportional to 3,906.72, 5,391.36 and 2,334.24

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Solution

The fourth proportional to 3,906.72, 5,391.36 and 2,334.24 is: 3,221.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,906.72 : 5,391.36 = 2,334.24 : x
  2. Step 2: Convert to fraction form
    3,906.72/5,391.36 = 2,334.24/x
  3. Step 3: Cross multiply
    3,906.72x = 5,391.36 × 2,334.24
  4. Step 4: Simplify right side
    3,906.72x = 12,584,728.17
  5. Step 5: Solve for x
    x = 12,584,728.17/3,906.72
  6. Step 6: Final answer
    x = 3,221.30

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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.