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Finding the Fourth Proportional to 3,821.87, 5,274.26 and 2,704.82

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Solution

The fourth proportional to 3,821.87, 5,274.26 and 2,704.82 is: 3,732.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,821.87 : 5,274.26 = 2,704.82 : x
  2. Step 2: Convert to fraction form
    3,821.87/5,274.26 = 2,704.82/x
  3. Step 3: Cross multiply
    3,821.87x = 5,274.26 × 2,704.82
  4. Step 4: Simplify right side
    3,821.87x = 14,265,884.04
  5. Step 5: Solve for x
    x = 14,265,884.04/3,821.87
  6. Step 6: Final answer
    x = 3,732.70

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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.