Home / 2,911.11-4,017.09-2,028.81

Finding the Fourth Proportional to 2,911.11, 4,017.09 and 2,028.81

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Solution

The fourth proportional to 2,911.11, 4,017.09 and 2,028.81 is: 2,799.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911.11 : 4,017.09 = 2,028.81 : x
  2. Step 2: Convert to fraction form
    2,911.11/4,017.09 = 2,028.81/x
  3. Step 3: Cross multiply
    2,911.11x = 4,017.09 × 2,028.81
  4. Step 4: Simplify right side
    2,911.11x = 8,149,912.36
  5. Step 5: Solve for x
    x = 8,149,912.36/2,911.11
  6. Step 6: Final answer
    x = 2,799.59

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1.5x scale

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.