Home / 3,112.27-4,297.96-2,661.51

Finding the Fourth Proportional to 3,112.27, 4,297.96 and 2,661.51

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Solution

The fourth proportional to 3,112.27, 4,297.96 and 2,661.51 is: 3,675.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.27 : 4,297.96 = 2,661.51 : x
  2. Step 2: Convert to fraction form
    3,112.27/4,297.96 = 2,661.51/x
  3. Step 3: Cross multiply
    3,112.27x = 4,297.96 × 2,661.51
  4. Step 4: Simplify right side
    3,112.27x = 11,439,058.79
  5. Step 5: Solve for x
    x = 11,439,058.79/3,112.27
  6. Step 6: Final answer
    x = 3,675.47

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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.