Home / 3,138.14-4,329.77-2,242.15

Finding the Fourth Proportional to 3,138.14, 4,329.77 and 2,242.15

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Solution

The fourth proportional to 3,138.14, 4,329.77 and 2,242.15 is: 3,093.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138.14 : 4,329.77 = 2,242.15 : x
  2. Step 2: Convert to fraction form
    3,138.14/4,329.77 = 2,242.15/x
  3. Step 3: Cross multiply
    3,138.14x = 4,329.77 × 2,242.15
  4. Step 4: Simplify right side
    3,138.14x = 9,707,996.13
  5. Step 5: Solve for x
    x = 9,707,996.13/3,138.14
  6. Step 6: Final answer
    x = 3,093.55

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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.