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Finding the Fourth Proportional to 6,388.05, 8,815.42 and 3,593.55

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Solution

The fourth proportional to 6,388.05, 8,815.42 and 3,593.55 is: 4,959.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,388.05 : 8,815.42 = 3,593.55 : x
  2. Step 2: Convert to fraction form
    6,388.05/8,815.42 = 3,593.55/x
  3. Step 3: Cross multiply
    6,388.05x = 8,815.42 × 3,593.55
  4. Step 4: Simplify right side
    6,388.05x = 31,678,652.54
  5. Step 5: Solve for x
    x = 31,678,652.54/6,388.05
  6. Step 6: Final answer
    x = 4,959.05

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.