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Finding the Fourth Proportional to 3,842.16, 5,765.04 and 1,992.27

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Solution

The fourth proportional to 3,842.16, 5,765.04 and 1,992.27 is: 2,989.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,842.16 : 5,765.04 = 1,992.27 : x
  2. Step 2: Convert to fraction form
    3,842.16/5,765.04 = 1,992.27/x
  3. Step 3: Cross multiply
    3,842.16x = 5,765.04 × 1,992.27
  4. Step 4: Simplify right side
    3,842.16x = 11,485,516.24
  5. Step 5: Solve for x
    x = 11,485,516.24/3,842.16
  6. Step 6: Final answer
    x = 2,989.34

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1.5x scale

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.