Home / 2,104.31-2,903.97-1,219.79

Finding the Fourth Proportional to 2,104.31, 2,903.97 and 1,219.79

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Solution

The fourth proportional to 2,104.31, 2,903.97 and 1,219.79 is: 1,683.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,104.31 : 2,903.97 = 1,219.79 : x
  2. Step 2: Convert to fraction form
    2,104.31/2,903.97 = 1,219.79/x
  3. Step 3: Cross multiply
    2,104.31x = 2,903.97 × 1,219.79
  4. Step 4: Simplify right side
    2,104.31x = 3,542,233.57
  5. Step 5: Solve for x
    x = 3,542,233.57/2,104.31
  6. Step 6: Final answer
    x = 1,683.32

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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.