Home / 2,512.86-3,769.26-1,213.42

Finding the Fourth Proportional to 2,512.86, 3,769.26 and 1,213.42

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Solution

The fourth proportional to 2,512.86, 3,769.26 and 1,213.42 is: 1,820.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,512.86 : 3,769.26 = 1,213.42 : x
  2. Step 2: Convert to fraction form
    2,512.86/3,769.26 = 1,213.42/x
  3. Step 3: Cross multiply
    2,512.86x = 3,769.26 × 1,213.42
  4. Step 4: Simplify right side
    2,512.86x = 4,573,695.47
  5. Step 5: Solve for x
    x = 4,573,695.47/2,512.86
  6. Step 6: Final answer
    x = 1,820.12

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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.