Home / 3,970.73-5,958.53-1,631.85

Finding the Fourth Proportional to 3,970.73, 5,958.53 and 1,631.85

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Solution

The fourth proportional to 3,970.73, 5,958.53 and 1,631.85 is: 2,448.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,970.73 : 5,958.53 = 1,631.85 : x
  2. Step 2: Convert to fraction form
    3,970.73/5,958.53 = 1,631.85/x
  3. Step 3: Cross multiply
    3,970.73x = 5,958.53 × 1,631.85
  4. Step 4: Simplify right side
    3,970.73x = 9,723,419.02
  5. Step 5: Solve for x
    x = 9,723,419.02/3,970.73
  6. Step 6: Final answer
    x = 2,448.78

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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.