Home / 7,819.92-11,726.42-3,661.11

Finding the Fourth Proportional to 7,819.92, 11,726.42 and 3,661.11

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Solution

The fourth proportional to 7,819.92, 11,726.42 and 3,661.11 is: 5,490.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,819.92 : 11,726.42 = 3,661.11 : x
  2. Step 2: Convert to fraction form
    7,819.92/11,726.42 = 3,661.11/x
  3. Step 3: Cross multiply
    7,819.92x = 11,726.42 × 3,661.11
  4. Step 4: Simplify right side
    7,819.92x = 42,931,695.22
  5. Step 5: Solve for x
    x = 42,931,695.22/7,819.92
  6. Step 6: Final answer
    x = 5,490.04

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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.