Home / 3,906.45-5,391.23-2,334.51

Finding the Fourth Proportional to 3,906.45, 5,391.23 and 2,334.51

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Solution

The fourth proportional to 3,906.45, 5,391.23 and 2,334.51 is: 3,221.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,906.45 : 5,391.23 = 2,334.51 : x
  2. Step 2: Convert to fraction form
    3,906.45/5,391.23 = 2,334.51/x
  3. Step 3: Cross multiply
    3,906.45x = 5,391.23 × 2,334.51
  4. Step 4: Simplify right side
    3,906.45x = 12,585,868.67
  5. Step 5: Solve for x
    x = 12,585,868.67/3,906.45
  6. Step 6: Final answer
    x = 3,221.82

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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.