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Finding the Fourth Proportional to 1,906.06, 2,857.74 and 735.07

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Solution

The fourth proportional to 1,906.06, 2,857.74 and 735.07 is: 1,102.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,906.06 : 2,857.74 = 735.07 : x
  2. Step 2: Convert to fraction form
    1,906.06/2,857.74 = 735.07/x
  3. Step 3: Cross multiply
    1,906.06x = 2,857.74 × 735.07
  4. Step 4: Simplify right side
    1,906.06x = 2,100,638.94
  5. Step 5: Solve for x
    x = 2,100,638.94/1,906.06
  6. Step 6: Final answer
    x = 1,102.08

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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.