Home / 5,128.69-7,694.91-2,167.87

Finding the Fourth Proportional to 5,128.69, 7,694.91 and 2,167.87

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Solution

The fourth proportional to 5,128.69, 7,694.91 and 2,167.87 is: 3,252.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,128.69 : 7,694.91 = 2,167.87 : x
  2. Step 2: Convert to fraction form
    5,128.69/7,694.91 = 2,167.87/x
  3. Step 3: Cross multiply
    5,128.69x = 7,694.91 × 2,167.87
  4. Step 4: Simplify right side
    5,128.69x = 16,681,564.54
  5. Step 5: Solve for x
    x = 16,681,564.54/5,128.69
  6. Step 6: Final answer
    x = 3,252.60

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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.