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Finding the Fourth Proportional to 2,996.56, 4,137.48 and 1,819.22

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Solution

The fourth proportional to 2,996.56, 4,137.48 and 1,819.22 is: 2,511.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,996.56 : 4,137.48 = 1,819.22 : x
  2. Step 2: Convert to fraction form
    2,996.56/4,137.48 = 1,819.22/x
  3. Step 3: Cross multiply
    2,996.56x = 4,137.48 × 1,819.22
  4. Step 4: Simplify right side
    2,996.56x = 7,526,986.37
  5. Step 5: Solve for x
    x = 7,526,986.37/2,996.56
  6. Step 6: Final answer
    x = 2,511.88

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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.