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Finding the Fourth Proportional to 1,910.34, 2,635.34 and 1,203.06

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Solution

The fourth proportional to 1,910.34, 2,635.34 and 1,203.06 is: 1,659.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,910.34 : 2,635.34 = 1,203.06 : x
  2. Step 2: Convert to fraction form
    1,910.34/2,635.34 = 1,203.06/x
  3. Step 3: Cross multiply
    1,910.34x = 2,635.34 × 1,203.06
  4. Step 4: Simplify right side
    1,910.34x = 3,170,472.14
  5. Step 5: Solve for x
    x = 3,170,472.14/1,910.34
  6. Step 6: Final answer
    x = 1,659.64

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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.