Home / 3,071.13-4,239.84-2,164.04

Finding the Fourth Proportional to 3,071.13, 4,239.84 and 2,164.04

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Solution

The fourth proportional to 3,071.13, 4,239.84 and 2,164.04 is: 2,987.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,071.13 : 4,239.84 = 2,164.04 : x
  2. Step 2: Convert to fraction form
    3,071.13/4,239.84 = 2,164.04/x
  3. Step 3: Cross multiply
    3,071.13x = 4,239.84 × 2,164.04
  4. Step 4: Simplify right side
    3,071.13x = 9,175,183.35
  5. Step 5: Solve for x
    x = 9,175,183.35/3,071.13
  6. Step 6: Final answer
    x = 2,987.56

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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.