Home / 6,939.28-10,403.16-3,239.60

Finding the Fourth Proportional to 6,939.28, 10,403.16 and 3,239.60

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Solution

The fourth proportional to 6,939.28, 10,403.16 and 3,239.60 is: 4,856.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,939.28 : 10,403.16 = 3,239.60 : x
  2. Step 2: Convert to fraction form
    6,939.28/10,403.16 = 3,239.60/x
  3. Step 3: Cross multiply
    6,939.28x = 10,403.16 × 3,239.60
  4. Step 4: Simplify right side
    6,939.28x = 33,702,077.14
  5. Step 5: Solve for x
    x = 33,702,077.14/6,939.28
  6. Step 6: Final answer
    x = 4,856.71

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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.