Home / 1,910.70-2,865.58-1,396.75

Finding the Fourth Proportional to 1,910.70, 2,865.58 and 1,396.75

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Solution

The fourth proportional to 1,910.70, 2,865.58 and 1,396.75 is: 2,094.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,910.70 : 2,865.58 = 1,396.75 : x
  2. Step 2: Convert to fraction form
    1,910.70/2,865.58 = 1,396.75/x
  3. Step 3: Cross multiply
    1,910.70x = 2,865.58 × 1,396.75
  4. Step 4: Simplify right side
    1,910.70x = 4,002,498.87
  5. Step 5: Solve for x
    x = 4,002,498.87/1,910.70
  6. Step 6: Final answer
    x = 2,094.78

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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.