Home / 3,809.70-5,715.36-1,177.38

Finding the Fourth Proportional to 3,809.70, 5,715.36 and 1,177.38

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Solution

The fourth proportional to 3,809.70, 5,715.36 and 1,177.38 is: 1,766.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,809.70 : 5,715.36 = 1,177.38 : x
  2. Step 2: Convert to fraction form
    3,809.70/5,715.36 = 1,177.38/x
  3. Step 3: Cross multiply
    3,809.70x = 5,715.36 × 1,177.38
  4. Step 4: Simplify right side
    3,809.70x = 6,729,150.56
  5. Step 5: Solve for x
    x = 6,729,150.56/3,809.70
  6. Step 6: Final answer
    x = 1,766.32

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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.