Home / 3,127.14-4,311.86-2,936.43

Finding the Fourth Proportional to 3,127.14, 4,311.86 and 2,936.43

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Solution

The fourth proportional to 3,127.14, 4,311.86 and 2,936.43 is: 4,048.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127.14 : 4,311.86 = 2,936.43 : x
  2. Step 2: Convert to fraction form
    3,127.14/4,311.86 = 2,936.43/x
  3. Step 3: Cross multiply
    3,127.14x = 4,311.86 × 2,936.43
  4. Step 4: Simplify right side
    3,127.14x = 12,661,460.38
  5. Step 5: Solve for x
    x = 12,661,460.38/3,127.14
  6. Step 6: Final answer
    x = 4,048.89

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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.