Home / 5,079.22-7,619.45-1,791.64

Finding the Fourth Proportional to 5,079.22, 7,619.45 and 1,791.64

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Solution

The fourth proportional to 5,079.22, 7,619.45 and 1,791.64 is: 2,687.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,079.22 : 7,619.45 = 1,791.64 : x
  2. Step 2: Convert to fraction form
    5,079.22/7,619.45 = 1,791.64/x
  3. Step 3: Cross multiply
    5,079.22x = 7,619.45 × 1,791.64
  4. Step 4: Simplify right side
    5,079.22x = 13,651,302.44
  5. Step 5: Solve for x
    x = 13,651,302.44/5,079.22
  6. Step 6: Final answer
    x = 2,687.68

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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.