Home / 4,939.77-7,406.19-1,819.37

Finding the Fourth Proportional to 4,939.77, 7,406.19 and 1,819.37

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Solution

The fourth proportional to 4,939.77, 7,406.19 and 1,819.37 is: 2,727.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,939.77 : 7,406.19 = 1,819.37 : x
  2. Step 2: Convert to fraction form
    4,939.77/7,406.19 = 1,819.37/x
  3. Step 3: Cross multiply
    4,939.77x = 7,406.19 × 1,819.37
  4. Step 4: Simplify right side
    4,939.77x = 13,474,599.90
  5. Step 5: Solve for x
    x = 13,474,599.90/4,939.77
  6. Step 6: Final answer
    x = 2,727.78

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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.