Home / 7,939.36-11,909-2,096.40

Finding the Fourth Proportional to 7,939.36, 11,909 and 2,096.40

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Solution

The fourth proportional to 7,939.36, 11,909 and 2,096.40 is: 3,144.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,939.36 : 11,909 = 2,096.40 : x
  2. Step 2: Convert to fraction form
    7,939.36/11,909 = 2,096.40/x
  3. Step 3: Cross multiply
    7,939.36x = 11,909 × 2,096.40
  4. Step 4: Simplify right side
    7,939.36x = 24,966,027.60
  5. Step 5: Solve for x
    x = 24,966,027.60/7,939.36
  6. Step 6: Final answer
    x = 3,144.59

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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.