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Finding the Fourth Proportional to 3,229.50, 4,844.43 and 921.18

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Solution

The fourth proportional to 3,229.50, 4,844.43 and 921.18 is: 1,381.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,229.50 : 4,844.43 = 921.18 : x
  2. Step 2: Convert to fraction form
    3,229.50/4,844.43 = 921.18/x
  3. Step 3: Cross multiply
    3,229.50x = 4,844.43 × 921.18
  4. Step 4: Simplify right side
    3,229.50x = 4,462,592.03
  5. Step 5: Solve for x
    x = 4,462,592.03/3,229.50
  6. Step 6: Final answer
    x = 1,381.82

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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.