Home / 2,979.41-4,108.08-2,418.11

Finding the Fourth Proportional to 2,979.41, 4,108.08 and 2,418.11

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Solution

The fourth proportional to 2,979.41, 4,108.08 and 2,418.11 is: 3,334.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979.41 : 4,108.08 = 2,418.11 : x
  2. Step 2: Convert to fraction form
    2,979.41/4,108.08 = 2,418.11/x
  3. Step 3: Cross multiply
    2,979.41x = 4,108.08 × 2,418.11
  4. Step 4: Simplify right side
    2,979.41x = 9,933,789.33
  5. Step 5: Solve for x
    x = 9,933,789.33/2,979.41
  6. Step 6: Final answer
    x = 3,334.15

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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.