Home / 3,091.12-4,636.44-1,791.76

Finding the Fourth Proportional to 3,091.12, 4,636.44 and 1,791.76

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Solution

The fourth proportional to 3,091.12, 4,636.44 and 1,791.76 is: 2,687.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,091.12 : 4,636.44 = 1,791.76 : x
  2. Step 2: Convert to fraction form
    3,091.12/4,636.44 = 1,791.76/x
  3. Step 3: Cross multiply
    3,091.12x = 4,636.44 × 1,791.76
  4. Step 4: Simplify right side
    3,091.12x = 8,307,387.73
  5. Step 5: Solve for x
    x = 8,307,387.73/3,091.12
  6. Step 6: Final answer
    x = 2,687.50

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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.