Home / 2,181.29-3,010.44-1,297.58

Finding the Fourth Proportional to 2,181.29, 3,010.44 and 1,297.58

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Solution

The fourth proportional to 2,181.29, 3,010.44 and 1,297.58 is: 1,790.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,181.29 : 3,010.44 = 1,297.58 : x
  2. Step 2: Convert to fraction form
    2,181.29/3,010.44 = 1,297.58/x
  3. Step 3: Cross multiply
    2,181.29x = 3,010.44 × 1,297.58
  4. Step 4: Simplify right side
    2,181.29x = 3,906,286.74
  5. Step 5: Solve for x
    x = 3,906,286.74/2,181.29
  6. Step 6: Final answer
    x = 1,790.81

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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.