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Finding the Fourth Proportional to 3,899.86, 5,844.26 and 3,018.26

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Solution

The fourth proportional to 3,899.86, 5,844.26 and 3,018.26 is: 4,523.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,899.86 : 5,844.26 = 3,018.26 : x
  2. Step 2: Convert to fraction form
    3,899.86/5,844.26 = 3,018.26/x
  3. Step 3: Cross multiply
    3,899.86x = 5,844.26 × 3,018.26
  4. Step 4: Simplify right side
    3,899.86x = 17,639,496.19
  5. Step 5: Solve for x
    x = 17,639,496.19/3,899.86
  6. Step 6: Final answer
    x = 4,523.11

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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.