Home / 5,229.90-7,837.56-3,929.85

Finding the Fourth Proportional to 5,229.90, 7,837.56 and 3,929.85

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Solution

The fourth proportional to 5,229.90, 7,837.56 and 3,929.85 is: 5,889.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,229.90 : 7,837.56 = 3,929.85 : x
  2. Step 2: Convert to fraction form
    5,229.90/7,837.56 = 3,929.85/x
  3. Step 3: Cross multiply
    5,229.90x = 7,837.56 × 3,929.85
  4. Step 4: Simplify right side
    5,229.90x = 30,800,435.17
  5. Step 5: Solve for x
    x = 30,800,435.17/5,229.90
  6. Step 6: Final answer
    x = 5,889.30

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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.