Home / 6,865.92-10,293.76-4,129.28

Finding the Fourth Proportional to 6,865.92, 10,293.76 and 4,129.28

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Solution

The fourth proportional to 6,865.92, 10,293.76 and 4,129.28 is: 6,190.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,865.92 : 10,293.76 = 4,129.28 : x
  2. Step 2: Convert to fraction form
    6,865.92/10,293.76 = 4,129.28/x
  3. Step 3: Cross multiply
    6,865.92x = 10,293.76 × 4,129.28
  4. Step 4: Simplify right side
    6,865.92x = 42,505,817.29
  5. Step 5: Solve for x
    x = 42,505,817.29/6,865.92
  6. Step 6: Final answer
    x = 6,190.84

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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.