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Finding the Fourth Proportional to 6,604.82, 9,907.29 and 2,855.90

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Solution

The fourth proportional to 6,604.82, 9,907.29 and 2,855.90 is: 4,283.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,604.82 : 9,907.29 = 2,855.90 : x
  2. Step 2: Convert to fraction form
    6,604.82/9,907.29 = 2,855.90/x
  3. Step 3: Cross multiply
    6,604.82x = 9,907.29 × 2,855.90
  4. Step 4: Simplify right side
    6,604.82x = 28,294,229.51
  5. Step 5: Solve for x
    x = 28,294,229.51/6,604.82
  6. Step 6: Final answer
    x = 4,283.88

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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.