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Finding the Fourth Proportional to 3,930.88, 5,883.36 and 3,498.88

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Solution

The fourth proportional to 3,930.88, 5,883.36 and 3,498.88 is: 5,236.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,930.88 : 5,883.36 = 3,498.88 : x
  2. Step 2: Convert to fraction form
    3,930.88/5,883.36 = 3,498.88/x
  3. Step 3: Cross multiply
    3,930.88x = 5,883.36 × 3,498.88
  4. Step 4: Simplify right side
    3,930.88x = 20,585,170.64
  5. Step 5: Solve for x
    x = 20,585,170.64/3,930.88
  6. Step 6: Final answer
    x = 5,236.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.