Home / 2,791.15-3,842.12-2,412.86

Finding the Fourth Proportional to 2,791.15, 3,842.12 and 2,412.86

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Solution

The fourth proportional to 2,791.15, 3,842.12 and 2,412.86 is: 3,321.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,791.15 : 3,842.12 = 2,412.86 : x
  2. Step 2: Convert to fraction form
    2,791.15/3,842.12 = 2,412.86/x
  3. Step 3: Cross multiply
    2,791.15x = 3,842.12 × 2,412.86
  4. Step 4: Simplify right side
    2,791.15x = 9,270,485.60
  5. Step 5: Solve for x
    x = 9,270,485.60/2,791.15
  6. Step 6: Final answer
    x = 3,321.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.