Home / 3,981.70-5,972.25-1,609.93

Finding the Fourth Proportional to 3,981.70, 5,972.25 and 1,609.93

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Solution

The fourth proportional to 3,981.70, 5,972.25 and 1,609.93 is: 2,414.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.70 : 5,972.25 = 1,609.93 : x
  2. Step 2: Convert to fraction form
    3,981.70/5,972.25 = 1,609.93/x
  3. Step 3: Cross multiply
    3,981.70x = 5,972.25 × 1,609.93
  4. Step 4: Simplify right side
    3,981.70x = 9,614,904.44
  5. Step 5: Solve for x
    x = 9,614,904.44/3,981.70
  6. Step 6: Final answer
    x = 2,414.77

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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.