Home / 2,297.90-3,171.09-1,249.96

Finding the Fourth Proportional to 2,297.90, 3,171.09 and 1,249.96

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Solution

The fourth proportional to 2,297.90, 3,171.09 and 1,249.96 is: 1,724.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,297.90 : 3,171.09 = 1,249.96 : x
  2. Step 2: Convert to fraction form
    2,297.90/3,171.09 = 1,249.96/x
  3. Step 3: Cross multiply
    2,297.90x = 3,171.09 × 1,249.96
  4. Step 4: Simplify right side
    2,297.90x = 3,963,729.41
  5. Step 5: Solve for x
    x = 3,963,729.41/2,297.90
  6. Step 6: Final answer
    x = 1,724.94

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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.