Home / 2,747.36-3,791.76-1,685.72

Finding the Fourth Proportional to 2,747.36, 3,791.76 and 1,685.72

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Solution

The fourth proportional to 2,747.36, 3,791.76 and 1,685.72 is: 2,326.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,747.36 : 3,791.76 = 1,685.72 : x
  2. Step 2: Convert to fraction form
    2,747.36/3,791.76 = 1,685.72/x
  3. Step 3: Cross multiply
    2,747.36x = 3,791.76 × 1,685.72
  4. Step 4: Simplify right side
    2,747.36x = 6,391,845.67
  5. Step 5: Solve for x
    x = 6,391,845.67/2,747.36
  6. Step 6: Final answer
    x = 2,326.54

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1.5x scale

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.