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Finding the Fourth Proportional to 3,759.44, 5,639.45 and 1,568.79

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Solution

The fourth proportional to 3,759.44, 5,639.45 and 1,568.79 is: 2,353.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,759.44 : 5,639.45 = 1,568.79 : x
  2. Step 2: Convert to fraction form
    3,759.44/5,639.45 = 1,568.79/x
  3. Step 3: Cross multiply
    3,759.44x = 5,639.45 × 1,568.79
  4. Step 4: Simplify right side
    3,759.44x = 8,847,104.92
  5. Step 5: Solve for x
    x = 8,847,104.92/3,759.44
  6. Step 6: Final answer
    x = 2,353.31

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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.