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Finding the Fourth Proportional to 2,675.00, 4,012.97 and 920.18

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Solution

The fourth proportional to 2,675.00, 4,012.97 and 920.18 is: 1,380.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,675.00 : 4,012.97 = 920.18 : x
  2. Step 2: Convert to fraction form
    2,675.00/4,012.97 = 920.18/x
  3. Step 3: Cross multiply
    2,675.00x = 4,012.97 × 920.18
  4. Step 4: Simplify right side
    2,675.00x = 3,692,660.17
  5. Step 5: Solve for x
    x = 3,692,660.17/2,675.00
  6. Step 6: Final answer
    x = 1,380.43

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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.