Home / 3,969.83-5,954.79-1,628.21

Finding the Fourth Proportional to 3,969.83, 5,954.79 and 1,628.21

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Solution

The fourth proportional to 3,969.83, 5,954.79 and 1,628.21 is: 2,442.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,969.83 : 5,954.79 = 1,628.21 : x
  2. Step 2: Convert to fraction form
    3,969.83/5,954.79 = 1,628.21/x
  3. Step 3: Cross multiply
    3,969.83x = 5,954.79 × 1,628.21
  4. Step 4: Simplify right side
    3,969.83x = 9,695,618.85
  5. Step 5: Solve for x
    x = 9,695,618.85/3,969.83
  6. Step 6: Final answer
    x = 2,442.33

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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.