Home / 3,883.50-5,359.26-2,311.50

Finding the Fourth Proportional to 3,883.50, 5,359.26 and 2,311.50

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Solution

The fourth proportional to 3,883.50, 5,359.26 and 2,311.50 is: 3,189.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,883.50 : 5,359.26 = 2,311.50 : x
  2. Step 2: Convert to fraction form
    3,883.50/5,359.26 = 2,311.50/x
  3. Step 3: Cross multiply
    3,883.50x = 5,359.26 × 2,311.50
  4. Step 4: Simplify right side
    3,883.50x = 12,387,929.49
  5. Step 5: Solve for x
    x = 12,387,929.49/3,883.50
  6. Step 6: Final answer
    x = 3,189.89

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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.