Home / 7,939.60-11,908.56-3,260.10

Finding the Fourth Proportional to 7,939.60, 11,908.56 and 3,260.10

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Solution

The fourth proportional to 7,939.60, 11,908.56 and 3,260.10 is: 4,889.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,939.60 : 11,908.56 = 3,260.10 : x
  2. Step 2: Convert to fraction form
    7,939.60/11,908.56 = 3,260.10/x
  3. Step 3: Cross multiply
    7,939.60x = 11,908.56 × 3,260.10
  4. Step 4: Simplify right side
    7,939.60x = 38,823,096.46
  5. Step 5: Solve for x
    x = 38,823,096.46/7,939.60
  6. Step 6: Final answer
    x = 4,889.81

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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.