Home / 3,082.69-4,619.89-1,986.49

Finding the Fourth Proportional to 3,082.69, 4,619.89 and 1,986.49

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Solution

The fourth proportional to 3,082.69, 4,619.89 and 1,986.49 is: 2,977.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,082.69 : 4,619.89 = 1,986.49 : x
  2. Step 2: Convert to fraction form
    3,082.69/4,619.89 = 1,986.49/x
  3. Step 3: Cross multiply
    3,082.69x = 4,619.89 × 1,986.49
  4. Step 4: Simplify right side
    3,082.69x = 9,177,365.29
  5. Step 5: Solve for x
    x = 9,177,365.29/3,082.69
  6. Step 6: Final answer
    x = 2,977.06

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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.