Home / 2,728.10-4,092.96-1,268.48

Finding the Fourth Proportional to 2,728.10, 4,092.96 and 1,268.48

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Solution

The fourth proportional to 2,728.10, 4,092.96 and 1,268.48 is: 1,903.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,728.10 : 4,092.96 = 1,268.48 : x
  2. Step 2: Convert to fraction form
    2,728.10/4,092.96 = 1,268.48/x
  3. Step 3: Cross multiply
    2,728.10x = 4,092.96 × 1,268.48
  4. Step 4: Simplify right side
    2,728.10x = 5,191,817.44
  5. Step 5: Solve for x
    x = 5,191,817.44/2,728.10
  6. Step 6: Final answer
    x = 1,903.09

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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.