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Finding the Fourth Proportional to 3,664.88, 5,497.31 and 1,612.88

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Solution

The fourth proportional to 3,664.88, 5,497.31 and 1,612.88 is: 2,419.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,664.88 : 5,497.31 = 1,612.88 : x
  2. Step 2: Convert to fraction form
    3,664.88/5,497.31 = 1,612.88/x
  3. Step 3: Cross multiply
    3,664.88x = 5,497.31 × 1,612.88
  4. Step 4: Simplify right side
    3,664.88x = 8,866,477.90
  5. Step 5: Solve for x
    x = 8,866,477.90/3,664.88
  6. Step 6: Final answer
    x = 2,419.31

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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.