Home / 2,979.98-4,468.82-1,418.78

Finding the Fourth Proportional to 2,979.98, 4,468.82 and 1,418.78

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Solution

The fourth proportional to 2,979.98, 4,468.82 and 1,418.78 is: 2,127.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979.98 : 4,468.82 = 1,418.78 : x
  2. Step 2: Convert to fraction form
    2,979.98/4,468.82 = 1,418.78/x
  3. Step 3: Cross multiply
    2,979.98x = 4,468.82 × 1,418.78
  4. Step 4: Simplify right side
    2,979.98x = 6,340,272.44
  5. Step 5: Solve for x
    x = 6,340,272.44/2,979.98
  6. Step 6: Final answer
    x = 2,127.62

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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.