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Finding the Fourth Proportional to 7,221.66, 10,837.04 and 2,839.00

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Solution

The fourth proportional to 7,221.66, 10,837.04 and 2,839.00 is: 4,260.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,221.66 : 10,837.04 = 2,839.00 : x
  2. Step 2: Convert to fraction form
    7,221.66/10,837.04 = 2,839.00/x
  3. Step 3: Cross multiply
    7,221.66x = 10,837.04 × 2,839.00
  4. Step 4: Simplify right side
    7,221.66x = 30,766,351.56
  5. Step 5: Solve for x
    x = 30,766,351.56/7,221.66
  6. Step 6: Final answer
    x = 4,260.29

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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.