Home / 3,721.82-5,580.68-1,639.35

Finding the Fourth Proportional to 3,721.82, 5,580.68 and 1,639.35

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Solution

The fourth proportional to 3,721.82, 5,580.68 and 1,639.35 is: 2,458.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721.82 : 5,580.68 = 1,639.35 : x
  2. Step 2: Convert to fraction form
    3,721.82/5,580.68 = 1,639.35/x
  3. Step 3: Cross multiply
    3,721.82x = 5,580.68 × 1,639.35
  4. Step 4: Simplify right side
    3,721.82x = 9,148,679.56
  5. Step 5: Solve for x
    x = 9,148,679.56/3,721.82
  6. Step 6: Final answer
    x = 2,458.12

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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.