Home / 1,911.44-2,637.39-1,249.27

Finding the Fourth Proportional to 1,911.44, 2,637.39 and 1,249.27

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Solution

The fourth proportional to 1,911.44, 2,637.39 and 1,249.27 is: 1,723.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,911.44 : 2,637.39 = 1,249.27 : x
  2. Step 2: Convert to fraction form
    1,911.44/2,637.39 = 1,249.27/x
  3. Step 3: Cross multiply
    1,911.44x = 2,637.39 × 1,249.27
  4. Step 4: Simplify right side
    1,911.44x = 3,294,812.21
  5. Step 5: Solve for x
    x = 3,294,812.21/1,911.44
  6. Step 6: Final answer
    x = 1,723.73

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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.