Home / 1,982.18-2,734.89-1,195.67

Finding the Fourth Proportional to 1,982.18, 2,734.89 and 1,195.67

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Solution

The fourth proportional to 1,982.18, 2,734.89 and 1,195.67 is: 1,649.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,982.18 : 2,734.89 = 1,195.67 : x
  2. Step 2: Convert to fraction form
    1,982.18/2,734.89 = 1,195.67/x
  3. Step 3: Cross multiply
    1,982.18x = 2,734.89 × 1,195.67
  4. Step 4: Simplify right side
    1,982.18x = 3,270,025.93
  5. Step 5: Solve for x
    x = 3,270,025.93/1,982.18
  6. Step 6: Final answer
    x = 1,649.71

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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.