Home / 3,172.44-4,758.66-2,979.76

Finding the Fourth Proportional to 3,172.44, 4,758.66 and 2,979.76

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Solution

The fourth proportional to 3,172.44, 4,758.66 and 2,979.76 is: 4,469.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,172.44 : 4,758.66 = 2,979.76 : x
  2. Step 2: Convert to fraction form
    3,172.44/4,758.66 = 2,979.76/x
  3. Step 3: Cross multiply
    3,172.44x = 4,758.66 × 2,979.76
  4. Step 4: Simplify right side
    3,172.44x = 14,179,664.72
  5. Step 5: Solve for x
    x = 14,179,664.72/3,172.44
  6. Step 6: Final answer
    x = 4,469.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.