Home / 1,954.85-2,698.17-1,208.36

Finding the Fourth Proportional to 1,954.85, 2,698.17 and 1,208.36

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Solution

The fourth proportional to 1,954.85, 2,698.17 and 1,208.36 is: 1,667.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,954.85 : 2,698.17 = 1,208.36 : x
  2. Step 2: Convert to fraction form
    1,954.85/2,698.17 = 1,208.36/x
  3. Step 3: Cross multiply
    1,954.85x = 2,698.17 × 1,208.36
  4. Step 4: Simplify right side
    1,954.85x = 3,260,357.68
  5. Step 5: Solve for x
    x = 3,260,357.68/1,954.85
  6. Step 6: Final answer
    x = 1,667.83

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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.