Home / 7,318.68-10,099.78-3,961.49

Finding the Fourth Proportional to 7,318.68, 10,099.78 and 3,961.49

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Solution

The fourth proportional to 7,318.68, 10,099.78 and 3,961.49 is: 5,466.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,318.68 : 10,099.78 = 3,961.49 : x
  2. Step 2: Convert to fraction form
    7,318.68/10,099.78 = 3,961.49/x
  3. Step 3: Cross multiply
    7,318.68x = 10,099.78 × 3,961.49
  4. Step 4: Simplify right side
    7,318.68x = 40,010,177.47
  5. Step 5: Solve for x
    x = 40,010,177.47/7,318.68
  6. Step 6: Final answer
    x = 5,466.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.