Home / 2,791.88-4,182.85-1,693.72

Finding the Fourth Proportional to 2,791.88, 4,182.85 and 1,693.72

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Solution

The fourth proportional to 2,791.88, 4,182.85 and 1,693.72 is: 2,537.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,791.88 : 4,182.85 = 1,693.72 : x
  2. Step 2: Convert to fraction form
    2,791.88/4,182.85 = 1,693.72/x
  3. Step 3: Cross multiply
    2,791.88x = 4,182.85 × 1,693.72
  4. Step 4: Simplify right side
    2,791.88x = 7,084,576.70
  5. Step 5: Solve for x
    x = 7,084,576.70/2,791.88
  6. Step 6: Final answer
    x = 2,537.56

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1.5x scale

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.