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Finding the Fourth Proportional to 6,626.88, 9,940.31 and 2,009.88

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Solution

The fourth proportional to 6,626.88, 9,940.31 and 2,009.88 is: 3,014.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,626.88 : 9,940.31 = 2,009.88 : x
  2. Step 2: Convert to fraction form
    6,626.88/9,940.31 = 2,009.88/x
  3. Step 3: Cross multiply
    6,626.88x = 9,940.31 × 2,009.88
  4. Step 4: Simplify right side
    6,626.88x = 19,978,830.26
  5. Step 5: Solve for x
    x = 19,978,830.26/6,626.88
  6. Step 6: Final answer
    x = 3,014.82

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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.