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Finding the Fourth Proportional to 5,212.72, 7,193.58 and 2,854.88

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Solution

The fourth proportional to 5,212.72, 7,193.58 and 2,854.88 is: 3,939.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,212.72 : 7,193.58 = 2,854.88 : x
  2. Step 2: Convert to fraction form
    5,212.72/7,193.58 = 2,854.88/x
  3. Step 3: Cross multiply
    5,212.72x = 7,193.58 × 2,854.88
  4. Step 4: Simplify right side
    5,212.72x = 20,536,787.97
  5. Step 5: Solve for x
    x = 20,536,787.97/5,212.72
  6. Step 6: Final answer
    x = 3,939.74

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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.