Home / 3,954.22-5,456.67-2,185.80

Finding the Fourth Proportional to 3,954.22, 5,456.67 and 2,185.80

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Solution

The fourth proportional to 3,954.22, 5,456.67 and 2,185.80 is: 3,016.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,954.22 : 5,456.67 = 2,185.80 : x
  2. Step 2: Convert to fraction form
    3,954.22/5,456.67 = 2,185.80/x
  3. Step 3: Cross multiply
    3,954.22x = 5,456.67 × 2,185.80
  4. Step 4: Simplify right side
    3,954.22x = 11,927,189.29
  5. Step 5: Solve for x
    x = 11,927,189.29/3,954.22
  6. Step 6: Final answer
    x = 3,016.32

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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.