Home / 3,939.44-5,438.76-3,502.08

Finding the Fourth Proportional to 3,939.44, 5,438.76 and 3,502.08

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Solution

The fourth proportional to 3,939.44, 5,438.76 and 3,502.08 is: 4,834.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939.44 : 5,438.76 = 3,502.08 : x
  2. Step 2: Convert to fraction form
    3,939.44/5,438.76 = 3,502.08/x
  3. Step 3: Cross multiply
    3,939.44x = 5,438.76 × 3,502.08
  4. Step 4: Simplify right side
    3,939.44x = 19,046,972.62
  5. Step 5: Solve for x
    x = 19,046,972.62/3,939.44
  6. Step 6: Final answer
    x = 4,834.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.