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Finding the Fourth Proportional to 7,072.78, 10,608.36 and 1,879.06

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Solution

The fourth proportional to 7,072.78, 10,608.36 and 1,879.06 is: 2,818.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,072.78 : 10,608.36 = 1,879.06 : x
  2. Step 2: Convert to fraction form
    7,072.78/10,608.36 = 1,879.06/x
  3. Step 3: Cross multiply
    7,072.78x = 10,608.36 × 1,879.06
  4. Step 4: Simplify right side
    7,072.78x = 19,933,744.94
  5. Step 5: Solve for x
    x = 19,933,744.94/7,072.78
  6. Step 6: Final answer
    x = 2,818.37

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.