Home / 2,680.26-4,011.39-2,578.02

Finding the Fourth Proportional to 2,680.26, 4,011.39 and 2,578.02

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Solution

The fourth proportional to 2,680.26, 4,011.39 and 2,578.02 is: 3,858.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,680.26 : 4,011.39 = 2,578.02 : x
  2. Step 2: Convert to fraction form
    2,680.26/4,011.39 = 2,578.02/x
  3. Step 3: Cross multiply
    2,680.26x = 4,011.39 × 2,578.02
  4. Step 4: Simplify right side
    2,680.26x = 10,341,443.65
  5. Step 5: Solve for x
    x = 10,341,443.65/2,680.26
  6. Step 6: Final answer
    x = 3,858.37

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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.