Home / 5,211.30-7,810.88-2,286.80

Finding the Fourth Proportional to 5,211.30, 7,810.88 and 2,286.80

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Solution

The fourth proportional to 5,211.30, 7,810.88 and 2,286.80 is: 3,427.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211.30 : 7,810.88 = 2,286.80 : x
  2. Step 2: Convert to fraction form
    5,211.30/7,810.88 = 2,286.80/x
  3. Step 3: Cross multiply
    5,211.30x = 7,810.88 × 2,286.80
  4. Step 4: Simplify right side
    5,211.30x = 17,861,869.90
  5. Step 5: Solve for x
    x = 17,861,869.90/5,211.30
  6. Step 6: Final answer
    x = 3,427.53

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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.