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Finding the Fourth Proportional to 1,906.48, 2,858.37 and 735.50

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Solution

The fourth proportional to 1,906.48, 2,858.37 and 735.50 is: 1,102.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,906.48 : 2,858.37 = 735.50 : x
  2. Step 2: Convert to fraction form
    1,906.48/2,858.37 = 735.50/x
  3. Step 3: Cross multiply
    1,906.48x = 2,858.37 × 735.50
  4. Step 4: Simplify right side
    1,906.48x = 2,102,331.14
  5. Step 5: Solve for x
    x = 2,102,331.14/1,906.48
  6. Step 6: Final answer
    x = 1,102.73

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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.