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Finding the Fourth Proportional to 3,270.70, 4,517.14 and 2,849.10

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Solution

The fourth proportional to 3,270.70, 4,517.14 and 2,849.10 is: 3,934.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,270.70 : 4,517.14 = 2,849.10 : x
  2. Step 2: Convert to fraction form
    3,270.70/4,517.14 = 2,849.10/x
  3. Step 3: Cross multiply
    3,270.70x = 4,517.14 × 2,849.10
  4. Step 4: Simplify right side
    3,270.70x = 12,869,783.57
  5. Step 5: Solve for x
    x = 12,869,783.57/3,270.70
  6. Step 6: Final answer
    x = 3,934.87

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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.