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Finding the Fourth Proportional to 2,625.96, 3,936.18 and 2,489.25

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Solution

The fourth proportional to 2,625.96, 3,936.18 and 2,489.25 is: 3,731.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,625.96 : 3,936.18 = 2,489.25 : x
  2. Step 2: Convert to fraction form
    2,625.96/3,936.18 = 2,489.25/x
  3. Step 3: Cross multiply
    2,625.96x = 3,936.18 × 2,489.25
  4. Step 4: Simplify right side
    2,625.96x = 9,798,136.07
  5. Step 5: Solve for x
    x = 9,798,136.07/2,625.96
  6. Step 6: Final answer
    x = 3,731.26

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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.