Home / 5,178.29-7,769.03-3,100.64

Finding the Fourth Proportional to 5,178.29, 7,769.03 and 3,100.64

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Solution

The fourth proportional to 5,178.29, 7,769.03 and 3,100.64 is: 4,651.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178.29 : 7,769.03 = 3,100.64 : x
  2. Step 2: Convert to fraction form
    5,178.29/7,769.03 = 3,100.64/x
  3. Step 3: Cross multiply
    5,178.29x = 7,769.03 × 3,100.64
  4. Step 4: Simplify right side
    5,178.29x = 24,088,910.83
  5. Step 5: Solve for x
    x = 24,088,910.83/5,178.29
  6. Step 6: Final answer
    x = 4,651.91

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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.