Home / 3,112.29-4,668.44-2,135.43

Finding the Fourth Proportional to 3,112.29, 4,668.44 and 2,135.43

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Solution

The fourth proportional to 3,112.29, 4,668.44 and 2,135.43 is: 3,203.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.29 : 4,668.44 = 2,135.43 : x
  2. Step 2: Convert to fraction form
    3,112.29/4,668.44 = 2,135.43/x
  3. Step 3: Cross multiply
    3,112.29x = 4,668.44 × 2,135.43
  4. Step 4: Simplify right side
    3,112.29x = 9,969,116.15
  5. Step 5: Solve for x
    x = 9,969,116.15/3,112.29
  6. Step 6: Final answer
    x = 3,203.15

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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.