Home / 1,909.16-2,863.74-1,179.25

Finding the Fourth Proportional to 1,909.16, 2,863.74 and 1,179.25

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Solution

The fourth proportional to 1,909.16, 2,863.74 and 1,179.25 is: 1,768.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,909.16 : 2,863.74 = 1,179.25 : x
  2. Step 2: Convert to fraction form
    1,909.16/2,863.74 = 1,179.25/x
  3. Step 3: Cross multiply
    1,909.16x = 2,863.74 × 1,179.25
  4. Step 4: Simplify right side
    1,909.16x = 3,377,065.40
  5. Step 5: Solve for x
    x = 3,377,065.40/1,909.16
  6. Step 6: Final answer
    x = 1,768.88

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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.