Home / 3,843.60-5,304.28-2,164.96

Finding the Fourth Proportional to 3,843.60, 5,304.28 and 2,164.96

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Solution

The fourth proportional to 3,843.60, 5,304.28 and 2,164.96 is: 2,987.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,843.60 : 5,304.28 = 2,164.96 : x
  2. Step 2: Convert to fraction form
    3,843.60/5,304.28 = 2,164.96/x
  3. Step 3: Cross multiply
    3,843.60x = 5,304.28 × 2,164.96
  4. Step 4: Simplify right side
    3,843.60x = 11,483,554.03
  5. Step 5: Solve for x
    x = 11,483,554.03/3,843.60
  6. Step 6: Final answer
    x = 2,987.71

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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.