Home / 3,834.79-5,749.04-1,986.43

Finding the Fourth Proportional to 3,834.79, 5,749.04 and 1,986.43

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Solution

The fourth proportional to 3,834.79, 5,749.04 and 1,986.43 is: 2,978.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,834.79 : 5,749.04 = 1,986.43 : x
  2. Step 2: Convert to fraction form
    3,834.79/5,749.04 = 1,986.43/x
  3. Step 3: Cross multiply
    3,834.79x = 5,749.04 × 1,986.43
  4. Step 4: Simplify right side
    3,834.79x = 11,420,065.53
  5. Step 5: Solve for x
    x = 11,420,065.53/3,834.79
  6. Step 6: Final answer
    x = 2,978.02

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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.