Home / 3,954.25-5,456.83-2,185.77

Finding the Fourth Proportional to 3,954.25, 5,456.83 and 2,185.77

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Solution

The fourth proportional to 3,954.25, 5,456.83 and 2,185.77 is: 3,016.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,954.25 : 5,456.83 = 2,185.77 : x
  2. Step 2: Convert to fraction form
    3,954.25/5,456.83 = 2,185.77/x
  3. Step 3: Cross multiply
    3,954.25x = 5,456.83 × 2,185.77
  4. Step 4: Simplify right side
    3,954.25x = 11,927,364.38
  5. Step 5: Solve for x
    x = 11,927,364.38/3,954.25
  6. Step 6: Final answer
    x = 3,016.34

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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.