Home / 6,121.13-8,446.98-3,469.38

Finding the Fourth Proportional to 6,121.13, 8,446.98 and 3,469.38

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Solution

The fourth proportional to 6,121.13, 8,446.98 and 3,469.38 is: 4,787.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,121.13 : 8,446.98 = 3,469.38 : x
  2. Step 2: Convert to fraction form
    6,121.13/8,446.98 = 3,469.38/x
  3. Step 3: Cross multiply
    6,121.13x = 8,446.98 × 3,469.38
  4. Step 4: Simplify right side
    6,121.13x = 29,305,783.47
  5. Step 5: Solve for x
    x = 29,305,783.47/6,121.13
  6. Step 6: Final answer
    x = 4,787.65

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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.