Home / 7,815.92-11,726.32-2,622.02

Finding the Fourth Proportional to 7,815.92, 11,726.32 and 2,622.02

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Solution

The fourth proportional to 7,815.92, 11,726.32 and 2,622.02 is: 3,933.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,815.92 : 11,726.32 = 2,622.02 : x
  2. Step 2: Convert to fraction form
    7,815.92/11,726.32 = 2,622.02/x
  3. Step 3: Cross multiply
    7,815.92x = 11,726.32 × 2,622.02
  4. Step 4: Simplify right side
    7,815.92x = 30,746,645.57
  5. Step 5: Solve for x
    x = 30,746,645.57/7,815.92
  6. Step 6: Final answer
    x = 3,933.85

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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.