Home / 1,930.38-2,662.74-1,144.23

Finding the Fourth Proportional to 1,930.38, 2,662.74 and 1,144.23

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Solution

The fourth proportional to 1,930.38, 2,662.74 and 1,144.23 is: 1,578.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,930.38 : 2,662.74 = 1,144.23 : x
  2. Step 2: Convert to fraction form
    1,930.38/2,662.74 = 1,144.23/x
  3. Step 3: Cross multiply
    1,930.38x = 2,662.74 × 1,144.23
  4. Step 4: Simplify right side
    1,930.38x = 3,046,786.99
  5. Step 5: Solve for x
    x = 3,046,786.99/1,930.38
  6. Step 6: Final answer
    x = 1,578.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.