Home / 3,957.92-5,934.82-1,981.42

Finding the Fourth Proportional to 3,957.92, 5,934.82 and 1,981.42

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Solution

The fourth proportional to 3,957.92, 5,934.82 and 1,981.42 is: 2,971.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,957.92 : 5,934.82 = 1,981.42 : x
  2. Step 2: Convert to fraction form
    3,957.92/5,934.82 = 1,981.42/x
  3. Step 3: Cross multiply
    3,957.92x = 5,934.82 × 1,981.42
  4. Step 4: Simplify right side
    3,957.92x = 11,759,351.25
  5. Step 5: Solve for x
    x = 11,759,351.25/3,957.92
  6. Step 6: Final answer
    x = 2,971.09

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1.5x scale

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.