Home / 3,954.38-5,456.56-2,185.74

Finding the Fourth Proportional to 3,954.38, 5,456.56 and 2,185.74

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Solution

The fourth proportional to 3,954.38, 5,456.56 and 2,185.74 is: 3,016.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,954.38 : 5,456.56 = 2,185.74 : x
  2. Step 2: Convert to fraction form
    3,954.38/5,456.56 = 2,185.74/x
  3. Step 3: Cross multiply
    3,954.38x = 5,456.56 × 2,185.74
  4. Step 4: Simplify right side
    3,954.38x = 11,926,621.45
  5. Step 5: Solve for x
    x = 11,926,621.45/3,954.38
  6. Step 6: Final answer
    x = 3,016.05

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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.