Home / 2,728.70-4,093.05-1,805.30

Finding the Fourth Proportional to 2,728.70, 4,093.05 and 1,805.30

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Solution

The fourth proportional to 2,728.70, 4,093.05 and 1,805.30 is: 2,707.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,728.70 : 4,093.05 = 1,805.30 : x
  2. Step 2: Convert to fraction form
    2,728.70/4,093.05 = 1,805.30/x
  3. Step 3: Cross multiply
    2,728.70x = 4,093.05 × 1,805.30
  4. Step 4: Simplify right side
    2,728.70x = 7,389,183.17
  5. Step 5: Solve for x
    x = 7,389,183.17/2,728.70
  6. Step 6: Final answer
    x = 2,707.95

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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.