Home / 5,540.76-8,312.36-2,619.09

Finding the Fourth Proportional to 5,540.76, 8,312.36 and 2,619.09

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Solution

The fourth proportional to 5,540.76, 8,312.36 and 2,619.09 is: 3,929.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,540.76 : 8,312.36 = 2,619.09 : x
  2. Step 2: Convert to fraction form
    5,540.76/8,312.36 = 2,619.09/x
  3. Step 3: Cross multiply
    5,540.76x = 8,312.36 × 2,619.09
  4. Step 4: Simplify right side
    5,540.76x = 21,770,805.86
  5. Step 5: Solve for x
    x = 21,770,805.86/5,540.76
  6. Step 6: Final answer
    x = 3,929.21

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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.