Home / 3,969.25-5,954.15-1,660.75

Finding the Fourth Proportional to 3,969.25, 5,954.15 and 1,660.75

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Solution

The fourth proportional to 3,969.25, 5,954.15 and 1,660.75 is: 2,491.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,969.25 : 5,954.15 = 1,660.75 : x
  2. Step 2: Convert to fraction form
    3,969.25/5,954.15 = 1,660.75/x
  3. Step 3: Cross multiply
    3,969.25x = 5,954.15 × 1,660.75
  4. Step 4: Simplify right side
    3,969.25x = 9,888,354.61
  5. Step 5: Solve for x
    x = 9,888,354.61/3,969.25
  6. Step 6: Final answer
    x = 2,491.24

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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.