Home / 1,144.38-1,575.42-1,092.14

Finding the Fourth Proportional to 1,144.38, 1,575.42 and 1,092.14

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Solution

The fourth proportional to 1,144.38, 1,575.42 and 1,092.14 is: 1,503.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,144.38 : 1,575.42 = 1,092.14 : x
  2. Step 2: Convert to fraction form
    1,144.38/1,575.42 = 1,092.14/x
  3. Step 3: Cross multiply
    1,144.38x = 1,575.42 × 1,092.14
  4. Step 4: Simplify right side
    1,144.38x = 1,720,579.20
  5. Step 5: Solve for x
    x = 1,720,579.20/1,144.38
  6. Step 6: Final answer
    x = 1,503.50

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Half scale
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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.