Home / 1,954.26-2,696.21-1,208.38

Finding the Fourth Proportional to 1,954.26, 2,696.21 and 1,208.38

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Solution

The fourth proportional to 1,954.26, 2,696.21 and 1,208.38 is: 1,667.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,954.26 : 2,696.21 = 1,208.38 : x
  2. Step 2: Convert to fraction form
    1,954.26/2,696.21 = 1,208.38/x
  3. Step 3: Cross multiply
    1,954.26x = 2,696.21 × 1,208.38
  4. Step 4: Simplify right side
    1,954.26x = 3,258,046.24
  5. Step 5: Solve for x
    x = 3,258,046.24/1,954.26
  6. Step 6: Final answer
    x = 1,667.15

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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.