Home / 3,992.27-5,509.35-2,223.86

Finding the Fourth Proportional to 3,992.27, 5,509.35 and 2,223.86

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Solution

The fourth proportional to 3,992.27, 5,509.35 and 2,223.86 is: 3,068.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,992.27 : 5,509.35 = 2,223.86 : x
  2. Step 2: Convert to fraction form
    3,992.27/5,509.35 = 2,223.86/x
  3. Step 3: Cross multiply
    3,992.27x = 5,509.35 × 2,223.86
  4. Step 4: Simplify right side
    3,992.27x = 12,251,995.54
  5. Step 5: Solve for x
    x = 12,251,995.54/3,992.27
  6. Step 6: Final answer
    x = 3,068.93

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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.