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Finding the Fourth Proportional to 5,799.80, 8,001.24 and 3,912.60

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Solution

The fourth proportional to 5,799.80, 8,001.24 and 3,912.60 is: 5,397.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,799.80 : 8,001.24 = 3,912.60 : x
  2. Step 2: Convert to fraction form
    5,799.80/8,001.24 = 3,912.60/x
  3. Step 3: Cross multiply
    5,799.80x = 8,001.24 × 3,912.60
  4. Step 4: Simplify right side
    5,799.80x = 31,305,651.62
  5. Step 5: Solve for x
    x = 31,305,651.62/5,799.80
  6. Step 6: Final answer
    x = 5,397.71

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1.5x scale

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.