Home / 2,859.82-4,286.13-1,214.44

Finding the Fourth Proportional to 2,859.82, 4,286.13 and 1,214.44

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Solution

The fourth proportional to 2,859.82, 4,286.13 and 1,214.44 is: 1,820.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,859.82 : 4,286.13 = 1,214.44 : x
  2. Step 2: Convert to fraction form
    2,859.82/4,286.13 = 1,214.44/x
  3. Step 3: Cross multiply
    2,859.82x = 4,286.13 × 1,214.44
  4. Step 4: Simplify right side
    2,859.82x = 5,205,247.72
  5. Step 5: Solve for x
    x = 5,205,247.72/2,859.82
  6. Step 6: Final answer
    x = 1,820.13

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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.