Home / 2,836.30-3,913.83-1,641.09

Finding the Fourth Proportional to 2,836.30, 3,913.83 and 1,641.09

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Solution

The fourth proportional to 2,836.30, 3,913.83 and 1,641.09 is: 2,264.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,836.30 : 3,913.83 = 1,641.09 : x
  2. Step 2: Convert to fraction form
    2,836.30/3,913.83 = 1,641.09/x
  3. Step 3: Cross multiply
    2,836.30x = 3,913.83 × 1,641.09
  4. Step 4: Simplify right side
    2,836.30x = 6,422,939.07
  5. Step 5: Solve for x
    x = 6,422,939.07/2,836.30
  6. Step 6: Final answer
    x = 2,264.55

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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.