Home / 2,578.80-3,851.82-2,214.96

Finding the Fourth Proportional to 2,578.80, 3,851.82 and 2,214.96

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Solution

The fourth proportional to 2,578.80, 3,851.82 and 2,214.96 is: 3,308.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578.80 : 3,851.82 = 2,214.96 : x
  2. Step 2: Convert to fraction form
    2,578.80/3,851.82 = 2,214.96/x
  3. Step 3: Cross multiply
    2,578.80x = 3,851.82 × 2,214.96
  4. Step 4: Simplify right side
    2,578.80x = 8,531,627.23
  5. Step 5: Solve for x
    x = 8,531,627.23/2,578.80
  6. Step 6: Final answer
    x = 3,308.37

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.