Home / 5,450.64-8,188.92-3,143.76

Finding the Fourth Proportional to 5,450.64, 8,188.92 and 3,143.76

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Solution

The fourth proportional to 5,450.64, 8,188.92 and 3,143.76 is: 4,723.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,450.64 : 8,188.92 = 3,143.76 : x
  2. Step 2: Convert to fraction form
    5,450.64/8,188.92 = 3,143.76/x
  3. Step 3: Cross multiply
    5,450.64x = 8,188.92 × 3,143.76
  4. Step 4: Simplify right side
    5,450.64x = 25,743,999.14
  5. Step 5: Solve for x
    x = 25,743,999.14/5,450.64
  6. Step 6: Final answer
    x = 4,723.11

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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.