Home / 3,930.30-5,896.08-1,297.06

Finding the Fourth Proportional to 3,930.30, 5,896.08 and 1,297.06

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Solution

The fourth proportional to 3,930.30, 5,896.08 and 1,297.06 is: 1,945.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,930.30 : 5,896.08 = 1,297.06 : x
  2. Step 2: Convert to fraction form
    3,930.30/5,896.08 = 1,297.06/x
  3. Step 3: Cross multiply
    3,930.30x = 5,896.08 × 1,297.06
  4. Step 4: Simplify right side
    3,930.30x = 7,647,569.52
  5. Step 5: Solve for x
    x = 7,647,569.52/3,930.30
  6. Step 6: Final answer
    x = 1,945.80

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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.