Home / 2,272.86-3,134.70-1,961.82

Finding the Fourth Proportional to 2,272.86, 3,134.70 and 1,961.82

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Solution

The fourth proportional to 2,272.86, 3,134.70 and 1,961.82 is: 2,705.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,272.86 : 3,134.70 = 1,961.82 : x
  2. Step 2: Convert to fraction form
    2,272.86/3,134.70 = 1,961.82/x
  3. Step 3: Cross multiply
    2,272.86x = 3,134.70 × 1,961.82
  4. Step 4: Simplify right side
    2,272.86x = 6,149,717.15
  5. Step 5: Solve for x
    x = 6,149,717.15/2,272.86
  6. Step 6: Final answer
    x = 2,705.72

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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.