Home / 2,743.80-4,115.70-2,560.20

Finding the Fourth Proportional to 2,743.80, 4,115.70 and 2,560.20

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Solution

The fourth proportional to 2,743.80, 4,115.70 and 2,560.20 is: 3,840.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,743.80 : 4,115.70 = 2,560.20 : x
  2. Step 2: Convert to fraction form
    2,743.80/4,115.70 = 2,560.20/x
  3. Step 3: Cross multiply
    2,743.80x = 4,115.70 × 2,560.20
  4. Step 4: Simplify right side
    2,743.80x = 10,537,015.14
  5. Step 5: Solve for x
    x = 10,537,015.14/2,743.80
  6. Step 6: Final answer
    x = 3,840.30

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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.