Home / 3,677.85-5,517.77-1,213.36

Finding the Fourth Proportional to 3,677.85, 5,517.77 and 1,213.36

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Solution

The fourth proportional to 3,677.85, 5,517.77 and 1,213.36 is: 1,820.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,677.85 : 5,517.77 = 1,213.36 : x
  2. Step 2: Convert to fraction form
    3,677.85/5,517.77 = 1,213.36/x
  3. Step 3: Cross multiply
    3,677.85x = 5,517.77 × 1,213.36
  4. Step 4: Simplify right side
    3,677.85x = 6,695,021.55
  5. Step 5: Solve for x
    x = 6,695,021.55/3,677.85
  6. Step 6: Final answer
    x = 1,820.36

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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.