Home / 7,936.65-11,905.38-3,005.71

Finding the Fourth Proportional to 7,936.65, 11,905.38 and 3,005.71

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Solution

The fourth proportional to 7,936.65, 11,905.38 and 3,005.71 is: 4,508.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,936.65 : 11,905.38 = 3,005.71 : x
  2. Step 2: Convert to fraction form
    7,936.65/11,905.38 = 3,005.71/x
  3. Step 3: Cross multiply
    7,936.65x = 11,905.38 × 3,005.71
  4. Step 4: Simplify right side
    7,936.65x = 35,784,089.96
  5. Step 5: Solve for x
    x = 35,784,089.96/7,936.65
  6. Step 6: Final answer
    x = 4,508.71

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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.