Home / 3,205.72-4,801.38-1,908.28

Finding the Fourth Proportional to 3,205.72, 4,801.38 and 1,908.28

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Solution

The fourth proportional to 3,205.72, 4,801.38 and 1,908.28 is: 2,858.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,205.72 : 4,801.38 = 1,908.28 : x
  2. Step 2: Convert to fraction form
    3,205.72/4,801.38 = 1,908.28/x
  3. Step 3: Cross multiply
    3,205.72x = 4,801.38 × 1,908.28
  4. Step 4: Simplify right side
    3,205.72x = 9,162,377.43
  5. Step 5: Solve for x
    x = 9,162,377.43/3,205.72
  6. Step 6: Final answer
    x = 2,858.13

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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.