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Finding the Fourth Proportional to 2,720.51, 4,079.14 and 1,844.09

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Solution

The fourth proportional to 2,720.51, 4,079.14 and 1,844.09 is: 2,765.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,720.51 : 4,079.14 = 1,844.09 : x
  2. Step 2: Convert to fraction form
    2,720.51/4,079.14 = 1,844.09/x
  3. Step 3: Cross multiply
    2,720.51x = 4,079.14 × 1,844.09
  4. Step 4: Simplify right side
    2,720.51x = 7,522,301.28
  5. Step 5: Solve for x
    x = 7,522,301.28/2,720.51
  6. Step 6: Final answer
    x = 2,765.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.