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Finding the Fourth Proportional to 1,936.16, 2,903.85 and 825.37

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Solution

The fourth proportional to 1,936.16, 2,903.85 and 825.37 is: 1,237.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,936.16 : 2,903.85 = 825.37 : x
  2. Step 2: Convert to fraction form
    1,936.16/2,903.85 = 825.37/x
  3. Step 3: Cross multiply
    1,936.16x = 2,903.85 × 825.37
  4. Step 4: Simplify right side
    1,936.16x = 2,396,746.51
  5. Step 5: Solve for x
    x = 2,396,746.51/1,936.16
  6. Step 6: Final answer
    x = 1,237.88

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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.