Home / 3,861.12-5,783.60-3,201.44

Finding the Fourth Proportional to 3,861.12, 5,783.60 and 3,201.44

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Solution

The fourth proportional to 3,861.12, 5,783.60 and 3,201.44 is: 4,795.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,861.12 : 5,783.60 = 3,201.44 : x
  2. Step 2: Convert to fraction form
    3,861.12/5,783.60 = 3,201.44/x
  3. Step 3: Cross multiply
    3,861.12x = 5,783.60 × 3,201.44
  4. Step 4: Simplify right side
    3,861.12x = 18,515,848.38
  5. Step 5: Solve for x
    x = 18,515,848.38/3,861.12
  6. Step 6: Final answer
    x = 4,795.46

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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.