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Finding the Fourth Proportional to 3,207, 4,796.60 and 1,887.61

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Solution

The fourth proportional to 3,207, 4,796.60 and 1,887.61 is: 2,823.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,207 : 4,796.60 = 1,887.61 : x
  2. Step 2: Convert to fraction form
    3,207/4,796.60 = 1,887.61/x
  3. Step 3: Cross multiply
    3,207x = 4,796.60 × 1,887.61
  4. Step 4: Simplify right side
    3,207x = 9,054,102.85
  5. Step 5: Solve for x
    x = 9,054,102.85/3,207
  6. Step 6: Final answer
    x = 2,823.23

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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.