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Finding the Fourth Proportional to 3,992.28, 5,986.40 and 2,326.94

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Solution

The fourth proportional to 3,992.28, 5,986.40 and 2,326.94 is: 3,489.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,992.28 : 5,986.40 = 2,326.94 : x
  2. Step 2: Convert to fraction form
    3,992.28/5,986.40 = 2,326.94/x
  3. Step 3: Cross multiply
    3,992.28x = 5,986.40 × 2,326.94
  4. Step 4: Simplify right side
    3,992.28x = 13,929,993.62
  5. Step 5: Solve for x
    x = 13,929,993.62/3,992.28
  6. Step 6: Final answer
    x = 3,489.23

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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.