Home / 1,821.97-2,512.38-1,193.05

Finding the Fourth Proportional to 1,821.97, 2,512.38 and 1,193.05

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Solution

The fourth proportional to 1,821.97, 2,512.38 and 1,193.05 is: 1,645.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821.97 : 2,512.38 = 1,193.05 : x
  2. Step 2: Convert to fraction form
    1,821.97/2,512.38 = 1,193.05/x
  3. Step 3: Cross multiply
    1,821.97x = 2,512.38 × 1,193.05
  4. Step 4: Simplify right side
    1,821.97x = 2,997,394.96
  5. Step 5: Solve for x
    x = 2,997,394.96/1,821.97
  6. Step 6: Final answer
    x = 1,645.14

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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.