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Finding the Fourth Proportional to 5,388.32, 8,080 and 2,793.08

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Solution

The fourth proportional to 5,388.32, 8,080 and 2,793.08 is: 4,188.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,388.32 : 8,080 = 2,793.08 : x
  2. Step 2: Convert to fraction form
    5,388.32/8,080 = 2,793.08/x
  3. Step 3: Cross multiply
    5,388.32x = 8,080 × 2,793.08
  4. Step 4: Simplify right side
    5,388.32x = 22,568,086.40
  5. Step 5: Solve for x
    x = 22,568,086.40/5,388.32
  6. Step 6: Final answer
    x = 4,188.33

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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.