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Finding the Fourth Proportional to 3,395.97, 5,080.25 and 2,938.86

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Solution

The fourth proportional to 3,395.97, 5,080.25 and 2,938.86 is: 4,396.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,395.97 : 5,080.25 = 2,938.86 : x
  2. Step 2: Convert to fraction form
    3,395.97/5,080.25 = 2,938.86/x
  3. Step 3: Cross multiply
    3,395.97x = 5,080.25 × 2,938.86
  4. Step 4: Simplify right side
    3,395.97x = 14,930,150.86
  5. Step 5: Solve for x
    x = 14,930,150.86/3,395.97
  6. Step 6: Final answer
    x = 4,396.43

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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.