Home / 7,948.92-11,923.61-2,105.53

Finding the Fourth Proportional to 7,948.92, 11,923.61 and 2,105.53

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Solution

The fourth proportional to 7,948.92, 11,923.61 and 2,105.53 is: 3,158.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,948.92 : 11,923.61 = 2,105.53 : x
  2. Step 2: Convert to fraction form
    7,948.92/11,923.61 = 2,105.53/x
  3. Step 3: Cross multiply
    7,948.92x = 11,923.61 × 2,105.53
  4. Step 4: Simplify right side
    7,948.92x = 25,105,548.37
  5. Step 5: Solve for x
    x = 25,105,548.37/7,948.92
  6. Step 6: Final answer
    x = 3,158.36

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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.