Home / 1,974.26-2,724.28-1,217.92

Finding the Fourth Proportional to 1,974.26, 2,724.28 and 1,217.92

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Solution

The fourth proportional to 1,974.26, 2,724.28 and 1,217.92 is: 1,680.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,974.26 : 2,724.28 = 1,217.92 : x
  2. Step 2: Convert to fraction form
    1,974.26/2,724.28 = 1,217.92/x
  3. Step 3: Cross multiply
    1,974.26x = 2,724.28 × 1,217.92
  4. Step 4: Simplify right side
    1,974.26x = 3,317,955.10
  5. Step 5: Solve for x
    x = 3,317,955.10/1,974.26
  6. Step 6: Final answer
    x = 1,680.61

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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.