Home / 2,107.25-2,908.10-1,175.75

Finding the Fourth Proportional to 2,107.25, 2,908.10 and 1,175.75

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Solution

The fourth proportional to 2,107.25, 2,908.10 and 1,175.75 is: 1,622.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,107.25 : 2,908.10 = 1,175.75 : x
  2. Step 2: Convert to fraction form
    2,107.25/2,908.10 = 1,175.75/x
  3. Step 3: Cross multiply
    2,107.25x = 2,908.10 × 1,175.75
  4. Step 4: Simplify right side
    2,107.25x = 3,419,192.70
  5. Step 5: Solve for x
    x = 3,419,192.70/2,107.25
  6. Step 6: Final answer
    x = 1,622.59

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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.