Home / 3,980.73-5,971.38-1,059

Finding the Fourth Proportional to 3,980.73, 5,971.38 and 1,059

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Solution

The fourth proportional to 3,980.73, 5,971.38 and 1,059 is: 1,588.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,980.73 : 5,971.38 = 1,059 : x
  2. Step 2: Convert to fraction form
    3,980.73/5,971.38 = 1,059/x
  3. Step 3: Cross multiply
    3,980.73x = 5,971.38 × 1,059
  4. Step 4: Simplify right side
    3,980.73x = 6,323,691.42
  5. Step 5: Solve for x
    x = 6,323,691.42/3,980.73
  6. Step 6: Final answer
    x = 1,588.58

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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.