Home / 3,969.20-5,954.40-2,324.90

Finding the Fourth Proportional to 3,969.20, 5,954.40 and 2,324.90

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Solution

The fourth proportional to 3,969.20, 5,954.40 and 2,324.90 is: 3,487.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,969.20 : 5,954.40 = 2,324.90 : x
  2. Step 2: Convert to fraction form
    3,969.20/5,954.40 = 2,324.90/x
  3. Step 3: Cross multiply
    3,969.20x = 5,954.40 × 2,324.90
  4. Step 4: Simplify right side
    3,969.20x = 13,843,354.79
  5. Step 5: Solve for x
    x = 13,843,354.79/3,969.20
  6. Step 6: Final answer
    x = 3,487.70

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1.5x scale

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.