Home / 1,469.25-2,191.62-1,329.12

Finding the Fourth Proportional to 1,469.25, 2,191.62 and 1,329.12

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Solution

The fourth proportional to 1,469.25, 2,191.62 and 1,329.12 is: 1,982.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,469.25 : 2,191.62 = 1,329.12 : x
  2. Step 2: Convert to fraction form
    1,469.25/2,191.62 = 1,329.12/x
  3. Step 3: Cross multiply
    1,469.25x = 2,191.62 × 1,329.12
  4. Step 4: Simplify right side
    1,469.25x = 2,912,925.97
  5. Step 5: Solve for x
    x = 2,912,925.97/1,469.25
  6. Step 6: Final answer
    x = 1,982.59

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.