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Finding the Fourth Proportional to 5,232.78, 7,221.30 and 2,874.96

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Solution

The fourth proportional to 5,232.78, 7,221.30 and 2,874.96 is: 3,967.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,232.78 : 7,221.30 = 2,874.96 : x
  2. Step 2: Convert to fraction form
    5,232.78/7,221.30 = 2,874.96/x
  3. Step 3: Cross multiply
    5,232.78x = 7,221.30 × 2,874.96
  4. Step 4: Simplify right side
    5,232.78x = 20,760,948.65
  5. Step 5: Solve for x
    x = 20,760,948.65/5,232.78
  6. Step 6: Final answer
    x = 3,967.48

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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.