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Finding the Fourth Proportional to 5,682.78, 7,842.78 and 3,324.42

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Solution

The fourth proportional to 5,682.78, 7,842.78 and 3,324.42 is: 4,588.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,682.78 : 7,842.78 = 3,324.42 : x
  2. Step 2: Convert to fraction form
    5,682.78/7,842.78 = 3,324.42/x
  3. Step 3: Cross multiply
    5,682.78x = 7,842.78 × 3,324.42
  4. Step 4: Simplify right side
    5,682.78x = 26,072,694.69
  5. Step 5: Solve for x
    x = 26,072,694.69/5,682.78
  6. Step 6: Final answer
    x = 4,588.02

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.