Home / 3,171.20-4,757.62-1,222.88

Finding the Fourth Proportional to 3,171.20, 4,757.62 and 1,222.88

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Solution

The fourth proportional to 3,171.20, 4,757.62 and 1,222.88 is: 1,834.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171.20 : 4,757.62 = 1,222.88 : x
  2. Step 2: Convert to fraction form
    3,171.20/4,757.62 = 1,222.88/x
  3. Step 3: Cross multiply
    3,171.20x = 4,757.62 × 1,222.88
  4. Step 4: Simplify right side
    3,171.20x = 5,817,998.35
  5. Step 5: Solve for x
    x = 5,817,998.35/3,171.20
  6. Step 6: Final answer
    x = 1,834.64

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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.