Home / 1,954.47-2,694.36-1,393.97

Finding the Fourth Proportional to 1,954.47, 2,694.36 and 1,393.97

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Solution

The fourth proportional to 1,954.47, 2,694.36 and 1,393.97 is: 1,921.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,954.47 : 2,694.36 = 1,393.97 : x
  2. Step 2: Convert to fraction form
    1,954.47/2,694.36 = 1,393.97/x
  3. Step 3: Cross multiply
    1,954.47x = 2,694.36 × 1,393.97
  4. Step 4: Simplify right side
    1,954.47x = 3,755,843.54
  5. Step 5: Solve for x
    x = 3,755,843.54/1,954.47
  6. Step 6: Final answer
    x = 1,921.67

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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.