Home / 3,188.52-4,399.20-1,861.32

Finding the Fourth Proportional to 3,188.52, 4,399.20 and 1,861.32

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Solution

The fourth proportional to 3,188.52, 4,399.20 and 1,861.32 is: 2,568.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.52 : 4,399.20 = 1,861.32 : x
  2. Step 2: Convert to fraction form
    3,188.52/4,399.20 = 1,861.32/x
  3. Step 3: Cross multiply
    3,188.52x = 4,399.20 × 1,861.32
  4. Step 4: Simplify right side
    3,188.52x = 8,188,318.94
  5. Step 5: Solve for x
    x = 8,188,318.94/3,188.52
  6. Step 6: Final answer
    x = 2,568.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.