Home / 2,127.88-2,936.82-1,778.44

Finding the Fourth Proportional to 2,127.88, 2,936.82 and 1,778.44

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Solution

The fourth proportional to 2,127.88, 2,936.82 and 1,778.44 is: 2,454.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,127.88 : 2,936.82 = 1,778.44 : x
  2. Step 2: Convert to fraction form
    2,127.88/2,936.82 = 1,778.44/x
  3. Step 3: Cross multiply
    2,127.88x = 2,936.82 × 1,778.44
  4. Step 4: Simplify right side
    2,127.88x = 5,222,958.16
  5. Step 5: Solve for x
    x = 5,222,958.16/2,127.88
  6. Step 6: Final answer
    x = 2,454.54

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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.