Home / 3,954.49-5,456.91-2,186.13

Finding the Fourth Proportional to 3,954.49, 5,456.91 and 2,186.13

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Solution

The fourth proportional to 3,954.49, 5,456.91 and 2,186.13 is: 3,016.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,954.49 : 5,456.91 = 2,186.13 : x
  2. Step 2: Convert to fraction form
    3,954.49/5,456.91 = 2,186.13/x
  3. Step 3: Cross multiply
    3,954.49x = 5,456.91 × 2,186.13
  4. Step 4: Simplify right side
    3,954.49x = 11,929,514.66
  5. Step 5: Solve for x
    x = 11,929,514.66/3,954.49
  6. Step 6: Final answer
    x = 3,016.70

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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.