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Finding the Fourth Proportional to 2,252.71, 3,379.11 and 1,213.57

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Solution

The fourth proportional to 2,252.71, 3,379.11 and 1,213.57 is: 1,820.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,252.71 : 3,379.11 = 1,213.57 : x
  2. Step 2: Convert to fraction form
    2,252.71/3,379.11 = 1,213.57/x
  3. Step 3: Cross multiply
    2,252.71x = 3,379.11 × 1,213.57
  4. Step 4: Simplify right side
    2,252.71x = 4,100,786.52
  5. Step 5: Solve for x
    x = 4,100,786.52/2,252.71
  6. Step 6: Final answer
    x = 1,820.38

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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.