Home / 3,172.20-4,383.66-2,384.88

Finding the Fourth Proportional to 3,172.20, 4,383.66 and 2,384.88

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Solution

The fourth proportional to 3,172.20, 4,383.66 and 2,384.88 is: 3,295.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,172.20 : 4,383.66 = 2,384.88 : x
  2. Step 2: Convert to fraction form
    3,172.20/4,383.66 = 2,384.88/x
  3. Step 3: Cross multiply
    3,172.20x = 4,383.66 × 2,384.88
  4. Step 4: Simplify right side
    3,172.20x = 10,454,503.06
  5. Step 5: Solve for x
    x = 10,454,503.06/3,172.20
  6. Step 6: Final answer
    x = 3,295.66

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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.