Home / 2,177.82-3,004.56-1,338.66

Finding the Fourth Proportional to 2,177.82, 3,004.56 and 1,338.66

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Solution

The fourth proportional to 2,177.82, 3,004.56 and 1,338.66 is: 1,846.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,177.82 : 3,004.56 = 1,338.66 : x
  2. Step 2: Convert to fraction form
    2,177.82/3,004.56 = 1,338.66/x
  3. Step 3: Cross multiply
    2,177.82x = 3,004.56 × 1,338.66
  4. Step 4: Simplify right side
    2,177.82x = 4,022,084.29
  5. Step 5: Solve for x
    x = 4,022,084.29/2,177.82
  6. Step 6: Final answer
    x = 1,846.84

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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.