Home / 1,662.04-2,488.67-1,331.42

Finding the Fourth Proportional to 1,662.04, 2,488.67 and 1,331.42

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Solution

The fourth proportional to 1,662.04, 2,488.67 and 1,331.42 is: 1,993.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,662.04 : 2,488.67 = 1,331.42 : x
  2. Step 2: Convert to fraction form
    1,662.04/2,488.67 = 1,331.42/x
  3. Step 3: Cross multiply
    1,662.04x = 2,488.67 × 1,331.42
  4. Step 4: Simplify right side
    1,662.04x = 3,313,469.57
  5. Step 5: Solve for x
    x = 3,313,469.57/1,662.04
  6. Step 6: Final answer
    x = 1,993.62

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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.