Home / 2,578.22-3,555.26-2,206.43

Finding the Fourth Proportional to 2,578.22, 3,555.26 and 2,206.43

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Solution

The fourth proportional to 2,578.22, 3,555.26 and 2,206.43 is: 3,042.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578.22 : 3,555.26 = 2,206.43 : x
  2. Step 2: Convert to fraction form
    2,578.22/3,555.26 = 2,206.43/x
  3. Step 3: Cross multiply
    2,578.22x = 3,555.26 × 2,206.43
  4. Step 4: Simplify right side
    2,578.22x = 7,844,432.32
  5. Step 5: Solve for x
    x = 7,844,432.32/2,578.22
  6. Step 6: Final answer
    x = 3,042.58

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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.