Home / 2,743.79-4,115.70-1,825.20

Finding the Fourth Proportional to 2,743.79, 4,115.70 and 1,825.20

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Solution

The fourth proportional to 2,743.79, 4,115.70 and 1,825.20 is: 2,737.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,743.79 : 4,115.70 = 1,825.20 : x
  2. Step 2: Convert to fraction form
    2,743.79/4,115.70 = 1,825.20/x
  3. Step 3: Cross multiply
    2,743.79x = 4,115.70 × 1,825.20
  4. Step 4: Simplify right side
    2,743.79x = 7,511,975.64
  5. Step 5: Solve for x
    x = 7,511,975.64/2,743.79
  6. Step 6: Final answer
    x = 2,737.81

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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.