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Finding the Fourth Proportional to 3,997.41, 5,504.94 and 3,985.26

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Solution

The fourth proportional to 3,997.41, 5,504.94 and 3,985.26 is: 5,488.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,997.41 : 5,504.94 = 3,985.26 : x
  2. Step 2: Convert to fraction form
    3,997.41/5,504.94 = 3,985.26/x
  3. Step 3: Cross multiply
    3,997.41x = 5,504.94 × 3,985.26
  4. Step 4: Simplify right side
    3,997.41x = 21,938,617.18
  5. Step 5: Solve for x
    x = 21,938,617.18/3,997.41
  6. Step 6: Final answer
    x = 5,488.21

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1.5x scale

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.