Home / 1,919.72-2,667.08-1,896.68

Finding the Fourth Proportional to 1,919.72, 2,667.08 and 1,896.68

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Solution

The fourth proportional to 1,919.72, 2,667.08 and 1,896.68 is: 2,635.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919.72 : 2,667.08 = 1,896.68 : x
  2. Step 2: Convert to fraction form
    1,919.72/2,667.08 = 1,896.68/x
  3. Step 3: Cross multiply
    1,919.72x = 2,667.08 × 1,896.68
  4. Step 4: Simplify right side
    1,919.72x = 5,058,597.29
  5. Step 5: Solve for x
    x = 5,058,597.29/1,919.72
  6. Step 6: Final answer
    x = 2,635.07

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.