Home / 6,634.75-9,939.47-3,419.86

Finding the Fourth Proportional to 6,634.75, 9,939.47 and 3,419.86

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Solution

The fourth proportional to 6,634.75, 9,939.47 and 3,419.86 is: 5,123.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,634.75 : 9,939.47 = 3,419.86 : x
  2. Step 2: Convert to fraction form
    6,634.75/9,939.47 = 3,419.86/x
  3. Step 3: Cross multiply
    6,634.75x = 9,939.47 × 3,419.86
  4. Step 4: Simplify right side
    6,634.75x = 33,991,529.08
  5. Step 5: Solve for x
    x = 33,991,529.08/6,634.75
  6. Step 6: Final answer
    x = 5,123.26

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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.