Home / 3,992.18-5,508.96-2,223.80

Finding the Fourth Proportional to 3,992.18, 5,508.96 and 2,223.80

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Solution

The fourth proportional to 3,992.18, 5,508.96 and 2,223.80 is: 3,068.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,992.18 : 5,508.96 = 2,223.80 : x
  2. Step 2: Convert to fraction form
    3,992.18/5,508.96 = 2,223.80/x
  3. Step 3: Cross multiply
    3,992.18x = 5,508.96 × 2,223.80
  4. Step 4: Simplify right side
    3,992.18x = 12,250,825.25
  5. Step 5: Solve for x
    x = 12,250,825.25/3,992.18
  6. Step 6: Final answer
    x = 3,068.71

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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.