Home / 1,969.21-2,717.85-1,183.15

Finding the Fourth Proportional to 1,969.21, 2,717.85 and 1,183.15

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Solution

The fourth proportional to 1,969.21, 2,717.85 and 1,183.15 is: 1,632.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,969.21 : 2,717.85 = 1,183.15 : x
  2. Step 2: Convert to fraction form
    1,969.21/2,717.85 = 1,183.15/x
  3. Step 3: Cross multiply
    1,969.21x = 2,717.85 × 1,183.15
  4. Step 4: Simplify right side
    1,969.21x = 3,215,624.23
  5. Step 5: Solve for x
    x = 3,215,624.23/1,969.21
  6. Step 6: Final answer
    x = 1,632.95

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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.