Home / 6,121.22-8,447.34-3,326.72

Finding the Fourth Proportional to 6,121.22, 8,447.34 and 3,326.72

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Solution

The fourth proportional to 6,121.22, 8,447.34 and 3,326.72 is: 4,590.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,121.22 : 8,447.34 = 3,326.72 : x
  2. Step 2: Convert to fraction form
    6,121.22/8,447.34 = 3,326.72/x
  3. Step 3: Cross multiply
    6,121.22x = 8,447.34 × 3,326.72
  4. Step 4: Simplify right side
    6,121.22x = 28,101,892.69
  5. Step 5: Solve for x
    x = 28,101,892.69/6,121.22
  6. Step 6: Final answer
    x = 4,590.90

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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.