Home / 3,469.46-4,787.10-1,976.96

Finding the Fourth Proportional to 3,469.46, 4,787.10 and 1,976.96

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Solution

The fourth proportional to 3,469.46, 4,787.10 and 1,976.96 is: 2,727.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,469.46 : 4,787.10 = 1,976.96 : x
  2. Step 2: Convert to fraction form
    3,469.46/4,787.10 = 1,976.96/x
  3. Step 3: Cross multiply
    3,469.46x = 4,787.10 × 1,976.96
  4. Step 4: Simplify right side
    3,469.46x = 9,463,917.18
  5. Step 5: Solve for x
    x = 9,463,917.18/3,469.46
  6. Step 6: Final answer
    x = 2,727.78

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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.