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Finding the Fourth Proportional to 3,933.68, 5,902.16 and 1,626.80

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Solution

The fourth proportional to 3,933.68, 5,902.16 and 1,626.80 is: 2,440.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,933.68 : 5,902.16 = 1,626.80 : x
  2. Step 2: Convert to fraction form
    3,933.68/5,902.16 = 1,626.80/x
  3. Step 3: Cross multiply
    3,933.68x = 5,902.16 × 1,626.80
  4. Step 4: Simplify right side
    3,933.68x = 9,601,633.89
  5. Step 5: Solve for x
    x = 9,601,633.89/3,933.68
  6. Step 6: Final answer
    x = 2,440.88

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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.