Home / 7,869.92-11,806.93-2,939.60

Finding the Fourth Proportional to 7,869.92, 11,806.93 and 2,939.60

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Solution

The fourth proportional to 7,869.92, 11,806.93 and 2,939.60 is: 4,410.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,869.92 : 11,806.93 = 2,939.60 : x
  2. Step 2: Convert to fraction form
    7,869.92/11,806.93 = 2,939.60/x
  3. Step 3: Cross multiply
    7,869.92x = 11,806.93 × 2,939.60
  4. Step 4: Simplify right side
    7,869.92x = 34,707,651.43
  5. Step 5: Solve for x
    x = 34,707,651.43/7,869.92
  6. Step 6: Final answer
    x = 4,410.17

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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.