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Finding the Fourth Proportional to 3,887.22, 5,860.14 and 3,636.66

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Solution

The fourth proportional to 3,887.22, 5,860.14 and 3,636.66 is: 5,482.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,887.22 : 5,860.14 = 3,636.66 : x
  2. Step 2: Convert to fraction form
    3,887.22/5,860.14 = 3,636.66/x
  3. Step 3: Cross multiply
    3,887.22x = 5,860.14 × 3,636.66
  4. Step 4: Simplify right side
    3,887.22x = 21,311,336.73
  5. Step 5: Solve for x
    x = 21,311,336.73/3,887.22
  6. Step 6: Final answer
    x = 5,482.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.