Home / 5,416.26-8,120.89-3,561.76

Finding the Fourth Proportional to 5,416.26, 8,120.89 and 3,561.76

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Solution

The fourth proportional to 5,416.26, 8,120.89 and 3,561.76 is: 5,340.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,416.26 : 8,120.89 = 3,561.76 : x
  2. Step 2: Convert to fraction form
    5,416.26/8,120.89 = 3,561.76/x
  3. Step 3: Cross multiply
    5,416.26x = 8,120.89 × 3,561.76
  4. Step 4: Simplify right side
    5,416.26x = 28,924,631.96
  5. Step 5: Solve for x
    x = 28,924,631.96/5,416.26
  6. Step 6: Final answer
    x = 5,340.33

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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.