Home / 3,955.38-5,458.14-2,186.98

Finding the Fourth Proportional to 3,955.38, 5,458.14 and 2,186.98

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Solution

The fourth proportional to 3,955.38, 5,458.14 and 2,186.98 is: 3,017.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,955.38 : 5,458.14 = 2,186.98 : x
  2. Step 2: Convert to fraction form
    3,955.38/5,458.14 = 2,186.98/x
  3. Step 3: Cross multiply
    3,955.38x = 5,458.14 × 2,186.98
  4. Step 4: Simplify right side
    3,955.38x = 11,936,843.02
  5. Step 5: Solve for x
    x = 11,936,843.02/3,955.38
  6. Step 6: Final answer
    x = 3,017.88

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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.