Home / 3,869.52-5,801.82-2,139.36

Finding the Fourth Proportional to 3,869.52, 5,801.82 and 2,139.36

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Solution

The fourth proportional to 3,869.52, 5,801.82 and 2,139.36 is: 3,207.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,869.52 : 5,801.82 = 2,139.36 : x
  2. Step 2: Convert to fraction form
    3,869.52/5,801.82 = 2,139.36/x
  3. Step 3: Cross multiply
    3,869.52x = 5,801.82 × 2,139.36
  4. Step 4: Simplify right side
    3,869.52x = 12,412,181.64
  5. Step 5: Solve for x
    x = 12,412,181.64/3,869.52
  6. Step 6: Final answer
    x = 3,207.68

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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.