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Finding the Fourth Proportional to 3,019.67, 4,169.67 and 1,902.41

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Solution

The fourth proportional to 3,019.67, 4,169.67 and 1,902.41 is: 2,626.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,019.67 : 4,169.67 = 1,902.41 : x
  2. Step 2: Convert to fraction form
    3,019.67/4,169.67 = 1,902.41/x
  3. Step 3: Cross multiply
    3,019.67x = 4,169.67 × 1,902.41
  4. Step 4: Simplify right side
    3,019.67x = 7,932,421.90
  5. Step 5: Solve for x
    x = 7,932,421.90/3,019.67
  6. Step 6: Final answer
    x = 2,626.92

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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.