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Finding the Fourth Proportional to 3,449.45, 4,759.86 and 1,936.91

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Solution

The fourth proportional to 3,449.45, 4,759.86 and 1,936.91 is: 2,672.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,449.45 : 4,759.86 = 1,936.91 : x
  2. Step 2: Convert to fraction form
    3,449.45/4,759.86 = 1,936.91/x
  3. Step 3: Cross multiply
    3,449.45x = 4,759.86 × 1,936.91
  4. Step 4: Simplify right side
    3,449.45x = 9,219,439.60
  5. Step 5: Solve for x
    x = 9,219,439.60/3,449.45
  6. Step 6: Final answer
    x = 2,672.73

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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.