Home / 3,930.29-5,896.30-1,298.60

Finding the Fourth Proportional to 3,930.29, 5,896.30 and 1,298.60

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Solution

The fourth proportional to 3,930.29, 5,896.30 and 1,298.60 is: 1,948.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,930.29 : 5,896.30 = 1,298.60 : x
  2. Step 2: Convert to fraction form
    3,930.29/5,896.30 = 1,298.60/x
  3. Step 3: Cross multiply
    3,930.29x = 5,896.30 × 1,298.60
  4. Step 4: Simplify right side
    3,930.29x = 7,656,935.18
  5. Step 5: Solve for x
    x = 7,656,935.18/3,930.29
  6. Step 6: Final answer
    x = 1,948.19

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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.