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Finding the Fourth Proportional to 1,469.31, 2,027.84 and 848.31

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Solution

The fourth proportional to 1,469.31, 2,027.84 and 848.31 is: 1,170.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,469.31 : 2,027.84 = 848.31 : x
  2. Step 2: Convert to fraction form
    1,469.31/2,027.84 = 848.31/x
  3. Step 3: Cross multiply
    1,469.31x = 2,027.84 × 848.31
  4. Step 4: Simplify right side
    1,469.31x = 1,720,232.71
  5. Step 5: Solve for x
    x = 1,720,232.71/1,469.31
  6. Step 6: Final answer
    x = 1,170.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.