Home / 5,243.85-7,236.30-2,886

Finding the Fourth Proportional to 5,243.85, 7,236.30 and 2,886

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Solution

The fourth proportional to 5,243.85, 7,236.30 and 2,886 is: 3,982.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,243.85 : 7,236.30 = 2,886 : x
  2. Step 2: Convert to fraction form
    5,243.85/7,236.30 = 2,886/x
  3. Step 3: Cross multiply
    5,243.85x = 7,236.30 × 2,886
  4. Step 4: Simplify right side
    5,243.85x = 20,883,961.80
  5. Step 5: Solve for x
    x = 20,883,961.80/5,243.85
  6. Step 6: Final answer
    x = 3,982.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.