Home / 3,857.23-5,784.39-1,391.44

Finding the Fourth Proportional to 3,857.23, 5,784.39 and 1,391.44

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Solution

The fourth proportional to 3,857.23, 5,784.39 and 1,391.44 is: 2,086.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,857.23 : 5,784.39 = 1,391.44 : x
  2. Step 2: Convert to fraction form
    3,857.23/5,784.39 = 1,391.44/x
  3. Step 3: Cross multiply
    3,857.23x = 5,784.39 × 1,391.44
  4. Step 4: Simplify right side
    3,857.23x = 8,048,631.62
  5. Step 5: Solve for x
    x = 8,048,631.62/3,857.23
  6. Step 6: Final answer
    x = 2,086.64

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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.