Home / 3,908.26-5,391.21-2,335.42

Finding the Fourth Proportional to 3,908.26, 5,391.21 and 2,335.42

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Solution

The fourth proportional to 3,908.26, 5,391.21 and 2,335.42 is: 3,221.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,908.26 : 5,391.21 = 2,335.42 : x
  2. Step 2: Convert to fraction form
    3,908.26/5,391.21 = 2,335.42/x
  3. Step 3: Cross multiply
    3,908.26x = 5,391.21 × 2,335.42
  4. Step 4: Simplify right side
    3,908.26x = 12,590,739.66
  5. Step 5: Solve for x
    x = 12,590,739.66/3,908.26
  6. Step 6: Final answer
    x = 3,221.57

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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.