Home / 5,163.41-7,128.45-3,400.14

Finding the Fourth Proportional to 5,163.41, 7,128.45 and 3,400.14

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Solution

The fourth proportional to 5,163.41, 7,128.45 and 3,400.14 is: 4,694.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,163.41 : 7,128.45 = 3,400.14 : x
  2. Step 2: Convert to fraction form
    5,163.41/7,128.45 = 3,400.14/x
  3. Step 3: Cross multiply
    5,163.41x = 7,128.45 × 3,400.14
  4. Step 4: Simplify right side
    5,163.41x = 24,237,727.98
  5. Step 5: Solve for x
    x = 24,237,727.98/5,163.41
  6. Step 6: Final answer
    x = 4,694.13

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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.