Home / 1,972.73-2,722.01-1,216.23

Finding the Fourth Proportional to 1,972.73, 2,722.01 and 1,216.23

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Solution

The fourth proportional to 1,972.73, 2,722.01 and 1,216.23 is: 1,678.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,972.73 : 2,722.01 = 1,216.23 : x
  2. Step 2: Convert to fraction form
    1,972.73/2,722.01 = 1,216.23/x
  3. Step 3: Cross multiply
    1,972.73x = 2,722.01 × 1,216.23
  4. Step 4: Simplify right side
    1,972.73x = 3,310,584.14
  5. Step 5: Solve for x
    x = 3,310,584.14/1,972.73
  6. Step 6: Final answer
    x = 1,678.18

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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.