Home / 1,968.61-2,716.69-1,183.11

Finding the Fourth Proportional to 1,968.61, 2,716.69 and 1,183.11

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Solution

The fourth proportional to 1,968.61, 2,716.69 and 1,183.11 is: 1,632.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,968.61 : 2,716.69 = 1,183.11 : x
  2. Step 2: Convert to fraction form
    1,968.61/2,716.69 = 1,183.11/x
  3. Step 3: Cross multiply
    1,968.61x = 2,716.69 × 1,183.11
  4. Step 4: Simplify right side
    1,968.61x = 3,214,147.46
  5. Step 5: Solve for x
    x = 3,214,147.46/1,968.61
  6. Step 6: Final answer
    x = 1,632.70

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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.