Home / 2,144.09-3,216.12-1,408.34

Finding the Fourth Proportional to 2,144.09, 3,216.12 and 1,408.34

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Solution

The fourth proportional to 2,144.09, 3,216.12 and 1,408.34 is: 2,112.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,144.09 : 3,216.12 = 1,408.34 : x
  2. Step 2: Convert to fraction form
    2,144.09/3,216.12 = 1,408.34/x
  3. Step 3: Cross multiply
    2,144.09x = 3,216.12 × 1,408.34
  4. Step 4: Simplify right side
    2,144.09x = 4,529,390.44
  5. Step 5: Solve for x
    x = 4,529,390.44/2,144.09
  6. Step 6: Final answer
    x = 2,112.51

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Half scale
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Double scale
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Similar ratio
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1.5x scale

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.