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Finding the Fourth Proportional to 4,481.78, 6,732.99 and 2,821.07

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Solution

The fourth proportional to 4,481.78, 6,732.99 and 2,821.07 is: 4,238.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,481.78 : 6,732.99 = 2,821.07 : x
  2. Step 2: Convert to fraction form
    4,481.78/6,732.99 = 2,821.07/x
  3. Step 3: Cross multiply
    4,481.78x = 6,732.99 × 2,821.07
  4. Step 4: Simplify right side
    4,481.78x = 18,994,252.93
  5. Step 5: Solve for x
    x = 18,994,252.93/4,481.78
  6. Step 6: Final answer
    x = 4,238.11

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1.5x scale

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.