Home / 3,992.26-5,509.44-2,199.80

Finding the Fourth Proportional to 3,992.26, 5,509.44 and 2,199.80

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Solution

The fourth proportional to 3,992.26, 5,509.44 and 2,199.80 is: 3,035.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,992.26 : 5,509.44 = 2,199.80 : x
  2. Step 2: Convert to fraction form
    3,992.26/5,509.44 = 2,199.80/x
  3. Step 3: Cross multiply
    3,992.26x = 5,509.44 × 2,199.80
  4. Step 4: Simplify right side
    3,992.26x = 12,119,666.11
  5. Step 5: Solve for x
    x = 12,119,666.11/3,992.26
  6. Step 6: Final answer
    x = 3,035.79

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1.5x scale

Why These Related Problems?

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