Home / 5,178.71-7,763.82-2,057.38

Finding the Fourth Proportional to 5,178.71, 7,763.82 and 2,057.38

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Solution

The fourth proportional to 5,178.71, 7,763.82 and 2,057.38 is: 3,084.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178.71 : 7,763.82 = 2,057.38 : x
  2. Step 2: Convert to fraction form
    5,178.71/7,763.82 = 2,057.38/x
  3. Step 3: Cross multiply
    5,178.71x = 7,763.82 × 2,057.38
  4. Step 4: Simplify right side
    5,178.71x = 15,973,100.87
  5. Step 5: Solve for x
    x = 15,973,100.87/5,178.71
  6. Step 6: Final answer
    x = 3,084.38

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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.