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Finding the Fourth Proportional to 3,908.22, 5,393.43 and 2,335.74

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Solution

The fourth proportional to 3,908.22, 5,393.43 and 2,335.74 is: 3,223.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,908.22 : 5,393.43 = 2,335.74 : x
  2. Step 2: Convert to fraction form
    3,908.22/5,393.43 = 2,335.74/x
  3. Step 3: Cross multiply
    3,908.22x = 5,393.43 × 2,335.74
  4. Step 4: Simplify right side
    3,908.22x = 12,597,650.19
  5. Step 5: Solve for x
    x = 12,597,650.19/3,908.22
  6. Step 6: Final answer
    x = 3,223.37

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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.