Home / 2,741.36-4,110.12-1,279.64

Finding the Fourth Proportional to 2,741.36, 4,110.12 and 1,279.64

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Solution

The fourth proportional to 2,741.36, 4,110.12 and 1,279.64 is: 1,918.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,741.36 : 4,110.12 = 1,279.64 : x
  2. Step 2: Convert to fraction form
    2,741.36/4,110.12 = 1,279.64/x
  3. Step 3: Cross multiply
    2,741.36x = 4,110.12 × 1,279.64
  4. Step 4: Simplify right side
    2,741.36x = 5,259,473.96
  5. Step 5: Solve for x
    x = 5,259,473.96/2,741.36
  6. Step 6: Final answer
    x = 1,918.56

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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.