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Finding the Fourth Proportional to 1,753.01, 2,625.74 and 827.18

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Solution

The fourth proportional to 1,753.01, 2,625.74 and 827.18 is: 1,238.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,753.01 : 2,625.74 = 827.18 : x
  2. Step 2: Convert to fraction form
    1,753.01/2,625.74 = 827.18/x
  3. Step 3: Cross multiply
    1,753.01x = 2,625.74 × 827.18
  4. Step 4: Simplify right side
    1,753.01x = 2,171,958.40
  5. Step 5: Solve for x
    x = 2,171,958.40/1,753.01
  6. Step 6: Final answer
    x = 1,238.99

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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.