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Finding the Fourth Proportional to 3,481.98, 4,805.05 and 1,910.06

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Solution

The fourth proportional to 3,481.98, 4,805.05 and 1,910.06 is: 2,635.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,481.98 : 4,805.05 = 1,910.06 : x
  2. Step 2: Convert to fraction form
    3,481.98/4,805.05 = 1,910.06/x
  3. Step 3: Cross multiply
    3,481.98x = 4,805.05 × 1,910.06
  4. Step 4: Simplify right side
    3,481.98x = 9,177,933.80
  5. Step 5: Solve for x
    x = 9,177,933.80/3,481.98
  6. Step 6: Final answer
    x = 2,635.84

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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.