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Finding the Fourth Proportional to 3,907.56, 5,887.72 and 3,229.44

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Solution

The fourth proportional to 3,907.56, 5,887.72 and 3,229.44 is: 4,865.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,907.56 : 5,887.72 = 3,229.44 : x
  2. Step 2: Convert to fraction form
    3,907.56/5,887.72 = 3,229.44/x
  3. Step 3: Cross multiply
    3,907.56x = 5,887.72 × 3,229.44
  4. Step 4: Simplify right side
    3,907.56x = 19,014,038.48
  5. Step 5: Solve for x
    x = 19,014,038.48/3,907.56
  6. Step 6: Final answer
    x = 4,865.96

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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.