Home / 3,135.69-4,327.44-1,791.72

Finding the Fourth Proportional to 3,135.69, 4,327.44 and 1,791.72

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Solution

The fourth proportional to 3,135.69, 4,327.44 and 1,791.72 is: 2,472.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,135.69 : 4,327.44 = 1,791.72 : x
  2. Step 2: Convert to fraction form
    3,135.69/4,327.44 = 1,791.72/x
  3. Step 3: Cross multiply
    3,135.69x = 4,327.44 × 1,791.72
  4. Step 4: Simplify right side
    3,135.69x = 7,753,560.80
  5. Step 5: Solve for x
    x = 7,753,560.80/3,135.69
  6. Step 6: Final answer
    x = 2,472.68

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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.