Home / 2,836.13-3,911.01-1,891.94

Finding the Fourth Proportional to 2,836.13, 3,911.01 and 1,891.94

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Solution

The fourth proportional to 2,836.13, 3,911.01 and 1,891.94 is: 2,608.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,836.13 : 3,911.01 = 1,891.94 : x
  2. Step 2: Convert to fraction form
    2,836.13/3,911.01 = 1,891.94/x
  3. Step 3: Cross multiply
    2,836.13x = 3,911.01 × 1,891.94
  4. Step 4: Simplify right side
    2,836.13x = 7,399,396.26
  5. Step 5: Solve for x
    x = 7,399,396.26/2,836.13
  6. Step 6: Final answer
    x = 2,608.98

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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.