Home / 3,972.75-5,482.83-2,976.33

Finding the Fourth Proportional to 3,972.75, 5,482.83 and 2,976.33

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Solution

The fourth proportional to 3,972.75, 5,482.83 and 2,976.33 is: 4,107.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,972.75 : 5,482.83 = 2,976.33 : x
  2. Step 2: Convert to fraction form
    3,972.75/5,482.83 = 2,976.33/x
  3. Step 3: Cross multiply
    3,972.75x = 5,482.83 × 2,976.33
  4. Step 4: Simplify right side
    3,972.75x = 16,318,711.41
  5. Step 5: Solve for x
    x = 16,318,711.41/3,972.75
  6. Step 6: Final answer
    x = 4,107.66

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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.