Home / 2,255.96-3,379.14-1,281.56

Finding the Fourth Proportional to 2,255.96, 3,379.14 and 1,281.56

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Solution

The fourth proportional to 2,255.96, 3,379.14 and 1,281.56 is: 1,919.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,255.96 : 3,379.14 = 1,281.56 : x
  2. Step 2: Convert to fraction form
    2,255.96/3,379.14 = 1,281.56/x
  3. Step 3: Cross multiply
    2,255.96x = 3,379.14 × 1,281.56
  4. Step 4: Simplify right side
    2,255.96x = 4,330,570.66
  5. Step 5: Solve for x
    x = 4,330,570.66/2,255.96
  6. Step 6: Final answer
    x = 1,919.61

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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.