Home / 3,930.80-5,896.83-1,297.56

Finding the Fourth Proportional to 3,930.80, 5,896.83 and 1,297.56

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Solution

The fourth proportional to 3,930.80, 5,896.83 and 1,297.56 is: 1,946.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,930.80 : 5,896.83 = 1,297.56 : x
  2. Step 2: Convert to fraction form
    3,930.80/5,896.83 = 1,297.56/x
  3. Step 3: Cross multiply
    3,930.80x = 5,896.83 × 1,297.56
  4. Step 4: Simplify right side
    3,930.80x = 7,651,490.73
  5. Step 5: Solve for x
    x = 7,651,490.73/3,930.80
  6. Step 6: Final answer
    x = 1,946.55

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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.