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Finding the Fourth Proportional to 4,855.87, 7,286.37 and 1,934.20

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Solution

The fourth proportional to 4,855.87, 7,286.37 and 1,934.20 is: 2,902.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,855.87 : 7,286.37 = 1,934.20 : x
  2. Step 2: Convert to fraction form
    4,855.87/7,286.37 = 1,934.20/x
  3. Step 3: Cross multiply
    4,855.87x = 7,286.37 × 1,934.20
  4. Step 4: Simplify right side
    4,855.87x = 14,093,296.85
  5. Step 5: Solve for x
    x = 14,093,296.85/4,855.87
  6. Step 6: Final answer
    x = 2,902.32

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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.