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Finding the Fourth Proportional to 2,004.75, 3,005.10 and 1,223.10

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Solution

The fourth proportional to 2,004.75, 3,005.10 and 1,223.10 is: 1,833.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,004.75 : 3,005.10 = 1,223.10 : x
  2. Step 2: Convert to fraction form
    2,004.75/3,005.10 = 1,223.10/x
  3. Step 3: Cross multiply
    2,004.75x = 3,005.10 × 1,223.10
  4. Step 4: Simplify right side
    2,004.75x = 3,675,537.81
  5. Step 5: Solve for x
    x = 3,675,537.81/2,004.75
  6. Step 6: Final answer
    x = 1,833.41

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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.