Home / 3,972.34-5,481.93-2,399.50

Finding the Fourth Proportional to 3,972.34, 5,481.93 and 2,399.50

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Solution

The fourth proportional to 3,972.34, 5,481.93 and 2,399.50 is: 3,311.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,972.34 : 5,481.93 = 2,399.50 : x
  2. Step 2: Convert to fraction form
    3,972.34/5,481.93 = 2,399.50/x
  3. Step 3: Cross multiply
    3,972.34x = 5,481.93 × 2,399.50
  4. Step 4: Simplify right side
    3,972.34x = 13,153,891.04
  5. Step 5: Solve for x
    x = 13,153,891.04/3,972.34
  6. Step 6: Final answer
    x = 3,311.37

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1.5x scale

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.