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Finding the Fourth Proportional to 1,883.70, 2,826.99 and 1,297.49

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Solution

The fourth proportional to 1,883.70, 2,826.99 and 1,297.49 is: 1,947.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,883.70 : 2,826.99 = 1,297.49 : x
  2. Step 2: Convert to fraction form
    1,883.70/2,826.99 = 1,297.49/x
  3. Step 3: Cross multiply
    1,883.70x = 2,826.99 × 1,297.49
  4. Step 4: Simplify right side
    1,883.70x = 3,667,977.12
  5. Step 5: Solve for x
    x = 3,667,977.12/1,883.70
  6. Step 6: Final answer
    x = 1,947.22

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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.