Home / 2,791.07-4,187.63-1,147.74

Finding the Fourth Proportional to 2,791.07, 4,187.63 and 1,147.74

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Solution

The fourth proportional to 2,791.07, 4,187.63 and 1,147.74 is: 1,722.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,791.07 : 4,187.63 = 1,147.74 : x
  2. Step 2: Convert to fraction form
    2,791.07/4,187.63 = 1,147.74/x
  3. Step 3: Cross multiply
    2,791.07x = 4,187.63 × 1,147.74
  4. Step 4: Simplify right side
    2,791.07x = 4,806,304.72
  5. Step 5: Solve for x
    x = 4,806,304.72/2,791.07
  6. Step 6: Final answer
    x = 1,722.03

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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.