Home / 5,163.90-7,129.14-3,400.64

Finding the Fourth Proportional to 5,163.90, 7,129.14 and 3,400.64

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Solution

The fourth proportional to 5,163.90, 7,129.14 and 3,400.64 is: 4,694.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,163.90 : 7,129.14 = 3,400.64 : x
  2. Step 2: Convert to fraction form
    5,163.90/7,129.14 = 3,400.64/x
  3. Step 3: Cross multiply
    5,163.90x = 7,129.14 × 3,400.64
  4. Step 4: Simplify right side
    5,163.90x = 24,243,638.65
  5. Step 5: Solve for x
    x = 24,243,638.65/5,163.90
  6. Step 6: Final answer
    x = 4,694.83

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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.