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Finding the Fourth Proportional to 3,788.07, 5,227.19 and 2,793.90

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Solution

The fourth proportional to 3,788.07, 5,227.19 and 2,793.90 is: 3,855.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,788.07 : 5,227.19 = 2,793.90 : x
  2. Step 2: Convert to fraction form
    3,788.07/5,227.19 = 2,793.90/x
  3. Step 3: Cross multiply
    3,788.07x = 5,227.19 × 2,793.90
  4. Step 4: Simplify right side
    3,788.07x = 14,604,206.04
  5. Step 5: Solve for x
    x = 14,604,206.04/3,788.07
  6. Step 6: Final answer
    x = 3,855.32

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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.