Home / 1,992.15-2,747.66-1,283.49

Finding the Fourth Proportional to 1,992.15, 2,747.66 and 1,283.49

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Solution

The fourth proportional to 1,992.15, 2,747.66 and 1,283.49 is: 1,770.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992.15 : 2,747.66 = 1,283.49 : x
  2. Step 2: Convert to fraction form
    1,992.15/2,747.66 = 1,283.49/x
  3. Step 3: Cross multiply
    1,992.15x = 2,747.66 × 1,283.49
  4. Step 4: Simplify right side
    1,992.15x = 3,526,587.72
  5. Step 5: Solve for x
    x = 3,526,587.72/1,992.15
  6. Step 6: Final answer
    x = 1,770.24

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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.