Home / 6,380.40-9,576.68-3,920.03

Finding the Fourth Proportional to 6,380.40, 9,576.68 and 3,920.03

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Solution

The fourth proportional to 6,380.40, 9,576.68 and 3,920.03 is: 5,883.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,380.40 : 9,576.68 = 3,920.03 : x
  2. Step 2: Convert to fraction form
    6,380.40/9,576.68 = 3,920.03/x
  3. Step 3: Cross multiply
    6,380.40x = 9,576.68 × 3,920.03
  4. Step 4: Simplify right side
    6,380.40x = 37,540,805.42
  5. Step 5: Solve for x
    x = 37,540,805.42/6,380.40
  6. Step 6: Final answer
    x = 5,883.77

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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.