Home / 5,129.91-7,079.37-3,006.97

Finding the Fourth Proportional to 5,129.91, 7,079.37 and 3,006.97

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Solution

The fourth proportional to 5,129.91, 7,079.37 and 3,006.97 is: 4,149.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,129.91 : 7,079.37 = 3,006.97 : x
  2. Step 2: Convert to fraction form
    5,129.91/7,079.37 = 3,006.97/x
  3. Step 3: Cross multiply
    5,129.91x = 7,079.37 × 3,006.97
  4. Step 4: Simplify right side
    5,129.91x = 21,287,453.21
  5. Step 5: Solve for x
    x = 21,287,453.21/5,129.91
  6. Step 6: Final answer
    x = 4,149.67

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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.