Home / 2,791.10-3,851.60-1,672.66

Finding the Fourth Proportional to 2,791.10, 3,851.60 and 1,672.66

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Solution

The fourth proportional to 2,791.10, 3,851.60 and 1,672.66 is: 2,308.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,791.10 : 3,851.60 = 1,672.66 : x
  2. Step 2: Convert to fraction form
    2,791.10/3,851.60 = 1,672.66/x
  3. Step 3: Cross multiply
    2,791.10x = 3,851.60 × 1,672.66
  4. Step 4: Simplify right side
    2,791.10x = 6,442,413.71
  5. Step 5: Solve for x
    x = 6,442,413.71/2,791.10
  6. Step 6: Final answer
    x = 2,308.20

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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.