Home / 1,972.26-2,719.19-1,616.90

Finding the Fourth Proportional to 1,972.26, 2,719.19 and 1,616.90

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Solution

The fourth proportional to 1,972.26, 2,719.19 and 1,616.90 is: 2,229.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,972.26 : 2,719.19 = 1,616.90 : x
  2. Step 2: Convert to fraction form
    1,972.26/2,719.19 = 1,616.90/x
  3. Step 3: Cross multiply
    1,972.26x = 2,719.19 × 1,616.90
  4. Step 4: Simplify right side
    1,972.26x = 4,396,648.76
  5. Step 5: Solve for x
    x = 4,396,648.76/1,972.26
  6. Step 6: Final answer
    x = 2,229.24

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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.