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Finding the Fourth Proportional to 3,469.90, 5,207.10 and 1,804.18

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Solution

The fourth proportional to 3,469.90, 5,207.10 and 1,804.18 is: 2,707.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,469.90 : 5,207.10 = 1,804.18 : x
  2. Step 2: Convert to fraction form
    3,469.90/5,207.10 = 1,804.18/x
  3. Step 3: Cross multiply
    3,469.90x = 5,207.10 × 1,804.18
  4. Step 4: Simplify right side
    3,469.90x = 9,394,545.68
  5. Step 5: Solve for x
    x = 9,394,545.68/3,469.90
  6. Step 6: Final answer
    x = 2,707.44

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1.5x scale

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.