Home / 6,822.67-10,211.80-3,815.75

Finding the Fourth Proportional to 6,822.67, 10,211.80 and 3,815.75

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Solution

The fourth proportional to 6,822.67, 10,211.80 and 3,815.75 is: 5,711.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,822.67 : 10,211.80 = 3,815.75 : x
  2. Step 2: Convert to fraction form
    6,822.67/10,211.80 = 3,815.75/x
  3. Step 3: Cross multiply
    6,822.67x = 10,211.80 × 3,815.75
  4. Step 4: Simplify right side
    6,822.67x = 38,965,615.25
  5. Step 5: Solve for x
    x = 38,965,615.25/6,822.67
  6. Step 6: Final answer
    x = 5,711.20

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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.