Home / 3,231.14-4,459.20-2,170.69

Finding the Fourth Proportional to 3,231.14, 4,459.20 and 2,170.69

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Solution

The fourth proportional to 3,231.14, 4,459.20 and 2,170.69 is: 2,995.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,231.14 : 4,459.20 = 2,170.69 : x
  2. Step 2: Convert to fraction form
    3,231.14/4,459.20 = 2,170.69/x
  3. Step 3: Cross multiply
    3,231.14x = 4,459.20 × 2,170.69
  4. Step 4: Simplify right side
    3,231.14x = 9,679,529.70
  5. Step 5: Solve for x
    x = 9,679,529.70/3,231.14
  6. Step 6: Final answer
    x = 2,995.70

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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.