Home / 2,152.82-3,231.66-1,277.22

Finding the Fourth Proportional to 2,152.82, 3,231.66 and 1,277.22

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Solution

The fourth proportional to 2,152.82, 3,231.66 and 1,277.22 is: 1,917.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,152.82 : 3,231.66 = 1,277.22 : x
  2. Step 2: Convert to fraction form
    2,152.82/3,231.66 = 1,277.22/x
  3. Step 3: Cross multiply
    2,152.82x = 3,231.66 × 1,277.22
  4. Step 4: Simplify right side
    2,152.82x = 4,127,540.79
  5. Step 5: Solve for x
    x = 4,127,540.79/2,152.82
  6. Step 6: Final answer
    x = 1,917.27

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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.