Home / 3,834.55-5,757.09-1,986.94

Finding the Fourth Proportional to 3,834.55, 5,757.09 and 1,986.94

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Solution

The fourth proportional to 3,834.55, 5,757.09 and 1,986.94 is: 2,983.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,834.55 : 5,757.09 = 1,986.94 : x
  2. Step 2: Convert to fraction form
    3,834.55/5,757.09 = 1,986.94/x
  3. Step 3: Cross multiply
    3,834.55x = 5,757.09 × 1,986.94
  4. Step 4: Simplify right side
    3,834.55x = 11,438,992.40
  5. Step 5: Solve for x
    x = 11,438,992.40/3,834.55
  6. Step 6: Final answer
    x = 2,983.14

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1.5x scale

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.