Home / 3,191.00-4,405.79-1,996.52

Finding the Fourth Proportional to 3,191.00, 4,405.79 and 1,996.52

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Solution

The fourth proportional to 3,191.00, 4,405.79 and 1,996.52 is: 2,756.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.00 : 4,405.79 = 1,996.52 : x
  2. Step 2: Convert to fraction form
    3,191.00/4,405.79 = 1,996.52/x
  3. Step 3: Cross multiply
    3,191.00x = 4,405.79 × 1,996.52
  4. Step 4: Simplify right side
    3,191.00x = 8,796,263.86
  5. Step 5: Solve for x
    x = 8,796,263.86/3,191.00
  6. Step 6: Final answer
    x = 2,756.58

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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.