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Finding the Fourth Proportional to 5,791.78, 8,687.40 and 2,326.60

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Solution

The fourth proportional to 5,791.78, 8,687.40 and 2,326.60 is: 3,489.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,791.78 : 8,687.40 = 2,326.60 : x
  2. Step 2: Convert to fraction form
    5,791.78/8,687.40 = 2,326.60/x
  3. Step 3: Cross multiply
    5,791.78x = 8,687.40 × 2,326.60
  4. Step 4: Simplify right side
    5,791.78x = 20,212,104.84
  5. Step 5: Solve for x
    x = 20,212,104.84/5,791.78
  6. Step 6: Final answer
    x = 3,489.79

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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.