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Finding the Fourth Proportional to 3,887.55, 5,828.06 and 1,694.63

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Solution

The fourth proportional to 3,887.55, 5,828.06 and 1,694.63 is: 2,540.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,887.55 : 5,828.06 = 1,694.63 : x
  2. Step 2: Convert to fraction form
    3,887.55/5,828.06 = 1,694.63/x
  3. Step 3: Cross multiply
    3,887.55x = 5,828.06 × 1,694.63
  4. Step 4: Simplify right side
    3,887.55x = 9,876,405.32
  5. Step 5: Solve for x
    x = 9,876,405.32/3,887.55
  6. Step 6: Final answer
    x = 2,540.52

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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.