Home / 1,811.97-2,496.66-1,221.48

Finding the Fourth Proportional to 1,811.97, 2,496.66 and 1,221.48

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Solution

The fourth proportional to 1,811.97, 2,496.66 and 1,221.48 is: 1,683.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,811.97 : 2,496.66 = 1,221.48 : x
  2. Step 2: Convert to fraction form
    1,811.97/2,496.66 = 1,221.48/x
  3. Step 3: Cross multiply
    1,811.97x = 2,496.66 × 1,221.48
  4. Step 4: Simplify right side
    1,811.97x = 3,049,620.26
  5. Step 5: Solve for x
    x = 3,049,620.26/1,811.97
  6. Step 6: Final answer
    x = 1,683.04

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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.