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Finding the Fourth Proportional to 2,759.37, 4,138.46 and 910.04

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Solution

The fourth proportional to 2,759.37, 4,138.46 and 910.04 is: 1,364.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,759.37 : 4,138.46 = 910.04 : x
  2. Step 2: Convert to fraction form
    2,759.37/4,138.46 = 910.04/x
  3. Step 3: Cross multiply
    2,759.37x = 4,138.46 × 910.04
  4. Step 4: Simplify right side
    2,759.37x = 3,766,170.42
  5. Step 5: Solve for x
    x = 3,766,170.42/2,759.37
  6. Step 6: Final answer
    x = 1,364.87

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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.