Home / 3,819.77-5,264.15-2,979.15

Finding the Fourth Proportional to 3,819.77, 5,264.15 and 2,979.15

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Solution

The fourth proportional to 3,819.77, 5,264.15 and 2,979.15 is: 4,105.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,819.77 : 5,264.15 = 2,979.15 : x
  2. Step 2: Convert to fraction form
    3,819.77/5,264.15 = 2,979.15/x
  3. Step 3: Cross multiply
    3,819.77x = 5,264.15 × 2,979.15
  4. Step 4: Simplify right side
    3,819.77x = 15,682,699.92
  5. Step 5: Solve for x
    x = 15,682,699.92/3,819.77
  6. Step 6: Final answer
    x = 4,105.66

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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.