Home / 5,421.44-8,121.68-3,566.96

Finding the Fourth Proportional to 5,421.44, 8,121.68 and 3,566.96

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Solution

The fourth proportional to 5,421.44, 8,121.68 and 3,566.96 is: 5,343.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.44 : 8,121.68 = 3,566.96 : x
  2. Step 2: Convert to fraction form
    5,421.44/8,121.68 = 3,566.96/x
  3. Step 3: Cross multiply
    5,421.44x = 8,121.68 × 3,566.96
  4. Step 4: Simplify right side
    5,421.44x = 28,969,707.69
  5. Step 5: Solve for x
    x = 28,969,707.69/5,421.44
  6. Step 6: Final answer
    x = 5,343.54

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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.