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Finding the Fourth Proportional to 2,177.73, 3,267.18 and 791.19

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Solution

The fourth proportional to 2,177.73, 3,267.18 and 791.19 is: 1,187.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,177.73 : 3,267.18 = 791.19 : x
  2. Step 2: Convert to fraction form
    2,177.73/3,267.18 = 791.19/x
  3. Step 3: Cross multiply
    2,177.73x = 3,267.18 × 791.19
  4. Step 4: Simplify right side
    2,177.73x = 2,584,960.14
  5. Step 5: Solve for x
    x = 2,584,960.14/2,177.73
  6. Step 6: Final answer
    x = 1,187.00

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1.5x scale

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.