Home / 1,910.25-2,861.66-1,409.01

Finding the Fourth Proportional to 1,910.25, 2,861.66 and 1,409.01

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Solution

The fourth proportional to 1,910.25, 2,861.66 and 1,409.01 is: 2,110.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,910.25 : 2,861.66 = 1,409.01 : x
  2. Step 2: Convert to fraction form
    1,910.25/2,861.66 = 1,409.01/x
  3. Step 3: Cross multiply
    1,910.25x = 2,861.66 × 1,409.01
  4. Step 4: Simplify right side
    1,910.25x = 4,032,107.56
  5. Step 5: Solve for x
    x = 4,032,107.56/1,910.25
  6. Step 6: Final answer
    x = 2,110.77

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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.