Home / 2,324.20-3,486.80-680.62

Finding the Fourth Proportional to 2,324.20, 3,486.80 and 680.62

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Solution

The fourth proportional to 2,324.20, 3,486.80 and 680.62 is: 1,021.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,324.20 : 3,486.80 = 680.62 : x
  2. Step 2: Convert to fraction form
    2,324.20/3,486.80 = 680.62/x
  3. Step 3: Cross multiply
    2,324.20x = 3,486.80 × 680.62
  4. Step 4: Simplify right side
    2,324.20x = 2,373,185.82
  5. Step 5: Solve for x
    x = 2,373,185.82/2,324.20
  6. Step 6: Final answer
    x = 1,021.08

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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.