Home / 3,872.27-5,348.09-2,618.51

Finding the Fourth Proportional to 3,872.27, 5,348.09 and 2,618.51

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Solution

The fourth proportional to 3,872.27, 5,348.09 and 2,618.51 is: 3,616.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,872.27 : 5,348.09 = 2,618.51 : x
  2. Step 2: Convert to fraction form
    3,872.27/5,348.09 = 2,618.51/x
  3. Step 3: Cross multiply
    3,872.27x = 5,348.09 × 2,618.51
  4. Step 4: Simplify right side
    3,872.27x = 14,003,987.31
  5. Step 5: Solve for x
    x = 14,003,987.31/3,872.27
  6. Step 6: Final answer
    x = 3,616.48

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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.