Home / 2,177.82-3,005.79-1,294.11

Finding the Fourth Proportional to 2,177.82, 3,005.79 and 1,294.11

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Solution

The fourth proportional to 2,177.82, 3,005.79 and 1,294.11 is: 1,786.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,177.82 : 3,005.79 = 1,294.11 : x
  2. Step 2: Convert to fraction form
    2,177.82/3,005.79 = 1,294.11/x
  3. Step 3: Cross multiply
    2,177.82x = 3,005.79 × 1,294.11
  4. Step 4: Simplify right side
    2,177.82x = 3,889,822.90
  5. Step 5: Solve for x
    x = 3,889,822.90/2,177.82
  6. Step 6: Final answer
    x = 1,786.11

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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.