Home / 2,342.97-3,512.43-1,109.75

Finding the Fourth Proportional to 2,342.97, 3,512.43 and 1,109.75

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Solution

The fourth proportional to 2,342.97, 3,512.43 and 1,109.75 is: 1,663.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,342.97 : 3,512.43 = 1,109.75 : x
  2. Step 2: Convert to fraction form
    2,342.97/3,512.43 = 1,109.75/x
  3. Step 3: Cross multiply
    2,342.97x = 3,512.43 × 1,109.75
  4. Step 4: Simplify right side
    2,342.97x = 3,897,901.63
  5. Step 5: Solve for x
    x = 3,897,901.63/2,342.97
  6. Step 6: Final answer
    x = 1,663.66

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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.