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Finding the Fourth Proportional to 2,235.00, 3,350.78 and 1,108.58

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Solution

The fourth proportional to 2,235.00, 3,350.78 and 1,108.58 is: 1,662.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,235.00 : 3,350.78 = 1,108.58 : x
  2. Step 2: Convert to fraction form
    2,235.00/3,350.78 = 1,108.58/x
  3. Step 3: Cross multiply
    2,235.00x = 3,350.78 × 1,108.58
  4. Step 4: Simplify right side
    2,235.00x = 3,714,590.94
  5. Step 5: Solve for x
    x = 3,714,590.94/2,235.00
  6. Step 6: Final answer
    x = 1,662.01

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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.