Home / 1,982.49-2,976.57-1,763.79

Finding the Fourth Proportional to 1,982.49, 2,976.57 and 1,763.79

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Solution

The fourth proportional to 1,982.49, 2,976.57 and 1,763.79 is: 2,648.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,982.49 : 2,976.57 = 1,763.79 : x
  2. Step 2: Convert to fraction form
    1,982.49/2,976.57 = 1,763.79/x
  3. Step 3: Cross multiply
    1,982.49x = 2,976.57 × 1,763.79
  4. Step 4: Simplify right side
    1,982.49x = 5,250,044.40
  5. Step 5: Solve for x
    x = 5,250,044.40/1,982.49
  6. Step 6: Final answer
    x = 2,648.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.