Home / 2,728.58-4,083.66-2,285.78

Finding the Fourth Proportional to 2,728.58, 4,083.66 and 2,285.78

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Solution

The fourth proportional to 2,728.58, 4,083.66 and 2,285.78 is: 3,420.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,728.58 : 4,083.66 = 2,285.78 : x
  2. Step 2: Convert to fraction form
    2,728.58/4,083.66 = 2,285.78/x
  3. Step 3: Cross multiply
    2,728.58x = 4,083.66 × 2,285.78
  4. Step 4: Simplify right side
    2,728.58x = 9,334,327.94
  5. Step 5: Solve for x
    x = 9,334,327.94/2,728.58
  6. Step 6: Final answer
    x = 3,420.95

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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.