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Finding the Fourth Proportional to 5,353.91, 8,015.27 and 3,125.96

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Solution

The fourth proportional to 5,353.91, 8,015.27 and 3,125.96 is: 4,679.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,353.91 : 8,015.27 = 3,125.96 : x
  2. Step 2: Convert to fraction form
    5,353.91/8,015.27 = 3,125.96/x
  3. Step 3: Cross multiply
    5,353.91x = 8,015.27 × 3,125.96
  4. Step 4: Simplify right side
    5,353.91x = 25,055,357.70
  5. Step 5: Solve for x
    x = 25,055,357.70/5,353.91
  6. Step 6: Final answer
    x = 4,679.83

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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.