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Finding the Fourth Proportional to 3,432, 5,144.48 and 1,485.44

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Solution

The fourth proportional to 3,432, 5,144.48 and 1,485.44 is: 2,226.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,432 : 5,144.48 = 1,485.44 : x
  2. Step 2: Convert to fraction form
    3,432/5,144.48 = 1,485.44/x
  3. Step 3: Cross multiply
    3,432x = 5,144.48 × 1,485.44
  4. Step 4: Simplify right side
    3,432x = 7,641,816.37
  5. Step 5: Solve for x
    x = 7,641,816.37/3,432
  6. Step 6: Final answer
    x = 2,226.64

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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.