Home / 3,611.86-5,416.71-1,531.83

Finding the Fourth Proportional to 3,611.86, 5,416.71 and 1,531.83

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Solution

The fourth proportional to 3,611.86, 5,416.71 and 1,531.83 is: 2,297.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,611.86 : 5,416.71 = 1,531.83 : x
  2. Step 2: Convert to fraction form
    3,611.86/5,416.71 = 1,531.83/x
  3. Step 3: Cross multiply
    3,611.86x = 5,416.71 × 1,531.83
  4. Step 4: Simplify right side
    3,611.86x = 8,297,478.88
  5. Step 5: Solve for x
    x = 8,297,478.88/3,611.86
  6. Step 6: Final answer
    x = 2,297.29

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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.