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Finding the Fourth Proportional to 2,757.96, 4,137.78 and 810.18

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Solution

The fourth proportional to 2,757.96, 4,137.78 and 810.18 is: 1,215.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,757.96 : 4,137.78 = 810.18 : x
  2. Step 2: Convert to fraction form
    2,757.96/4,137.78 = 810.18/x
  3. Step 3: Cross multiply
    2,757.96x = 4,137.78 × 810.18
  4. Step 4: Simplify right side
    2,757.96x = 3,352,346.60
  5. Step 5: Solve for x
    x = 3,352,346.60/2,757.96
  6. Step 6: Final answer
    x = 1,215.52

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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.