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Finding the Fourth Proportional to 1,268.16, 1,902.39 and 537.33

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Solution

The fourth proportional to 1,268.16, 1,902.39 and 537.33 is: 806.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268.16 : 1,902.39 = 537.33 : x
  2. Step 2: Convert to fraction form
    1,268.16/1,902.39 = 537.33/x
  3. Step 3: Cross multiply
    1,268.16x = 1,902.39 × 537.33
  4. Step 4: Simplify right side
    1,268.16x = 1,022,216.34
  5. Step 5: Solve for x
    x = 1,022,216.34/1,268.16
  6. Step 6: Final answer
    x = 806.06

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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.