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Finding the Fourth Proportional to 3,644.31, 5,464.71 and 1,975.77

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Solution

The fourth proportional to 3,644.31, 5,464.71 and 1,975.77 is: 2,962.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,644.31 : 5,464.71 = 1,975.77 : x
  2. Step 2: Convert to fraction form
    3,644.31/5,464.71 = 1,975.77/x
  3. Step 3: Cross multiply
    3,644.31x = 5,464.71 × 1,975.77
  4. Step 4: Simplify right side
    3,644.31x = 10,796,982.75
  5. Step 5: Solve for x
    x = 10,796,982.75/3,644.31
  6. Step 6: Final answer
    x = 2,962.70

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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.