Home / 3,118.91-4,304.34-1,940.15

Finding the Fourth Proportional to 3,118.91, 4,304.34 and 1,940.15

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Solution

The fourth proportional to 3,118.91, 4,304.34 and 1,940.15 is: 2,677.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.91 : 4,304.34 = 1,940.15 : x
  2. Step 2: Convert to fraction form
    3,118.91/4,304.34 = 1,940.15/x
  3. Step 3: Cross multiply
    3,118.91x = 4,304.34 × 1,940.15
  4. Step 4: Simplify right side
    3,118.91x = 8,351,076.01
  5. Step 5: Solve for x
    x = 8,351,076.01/3,118.91
  6. Step 6: Final answer
    x = 2,677.57

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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.