Home / 2,791.22-4,185.24-1,148.90

Finding the Fourth Proportional to 2,791.22, 4,185.24 and 1,148.90

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Solution

The fourth proportional to 2,791.22, 4,185.24 and 1,148.90 is: 1,722.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,791.22 : 4,185.24 = 1,148.90 : x
  2. Step 2: Convert to fraction form
    2,791.22/4,185.24 = 1,148.90/x
  3. Step 3: Cross multiply
    2,791.22x = 4,185.24 × 1,148.90
  4. Step 4: Simplify right side
    2,791.22x = 4,808,422.24
  5. Step 5: Solve for x
    x = 4,808,422.24/2,791.22
  6. Step 6: Final answer
    x = 1,722.70

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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.