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Finding the Fourth Proportional to 3,996.61, 5,994.97 and 1,531.56

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Solution

The fourth proportional to 3,996.61, 5,994.97 and 1,531.56 is: 2,297.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,996.61 : 5,994.97 = 1,531.56 : x
  2. Step 2: Convert to fraction form
    3,996.61/5,994.97 = 1,531.56/x
  3. Step 3: Cross multiply
    3,996.61x = 5,994.97 × 1,531.56
  4. Step 4: Simplify right side
    3,996.61x = 9,181,656.25
  5. Step 5: Solve for x
    x = 9,181,656.25/3,996.61
  6. Step 6: Final answer
    x = 2,297.36

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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.