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Finding the Fourth Proportional to 3,568.57, 5,353.84 and 1,489.55

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Solution

The fourth proportional to 3,568.57, 5,353.84 and 1,489.55 is: 2,234.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,568.57 : 5,353.84 = 1,489.55 : x
  2. Step 2: Convert to fraction form
    3,568.57/5,353.84 = 1,489.55/x
  3. Step 3: Cross multiply
    3,568.57x = 5,353.84 × 1,489.55
  4. Step 4: Simplify right side
    3,568.57x = 7,974,812.37
  5. Step 5: Solve for x
    x = 7,974,812.37/3,568.57
  6. Step 6: Final answer
    x = 2,234.74

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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.