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Finding the Fourth Proportional to 3,340.54, 5,010.87 and 1,260.73

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Solution

The fourth proportional to 3,340.54, 5,010.87 and 1,260.73 is: 1,891.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,340.54 : 5,010.87 = 1,260.73 : x
  2. Step 2: Convert to fraction form
    3,340.54/5,010.87 = 1,260.73/x
  3. Step 3: Cross multiply
    3,340.54x = 5,010.87 × 1,260.73
  4. Step 4: Simplify right side
    3,340.54x = 6,317,354.14
  5. Step 5: Solve for x
    x = 6,317,354.14/3,340.54
  6. Step 6: Final answer
    x = 1,891.12

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Why These Related Problems?

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