Home / 3,992.28-5,509.00-2,223.85

Finding the Fourth Proportional to 3,992.28, 5,509.00 and 2,223.85

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Solution

The fourth proportional to 3,992.28, 5,509.00 and 2,223.85 is: 3,068.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,992.28 : 5,509.00 = 2,223.85 : x
  2. Step 2: Convert to fraction form
    3,992.28/5,509.00 = 2,223.85/x
  3. Step 3: Cross multiply
    3,992.28x = 5,509.00 × 2,223.85
  4. Step 4: Simplify right side
    3,992.28x = 12,251,178.53
  5. Step 5: Solve for x
    x = 12,251,178.53/3,992.28
  6. Step 6: Final answer
    x = 3,068.72

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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.