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Finding the Fourth Proportional to 2,673.44, 3,992.40 and 2,644.48

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Solution

The fourth proportional to 2,673.44, 3,992.40 and 2,644.48 is: 3,949.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,673.44 : 3,992.40 = 2,644.48 : x
  2. Step 2: Convert to fraction form
    2,673.44/3,992.40 = 2,644.48/x
  3. Step 3: Cross multiply
    2,673.44x = 3,992.40 × 2,644.48
  4. Step 4: Simplify right side
    2,673.44x = 10,557,821.95
  5. Step 5: Solve for x
    x = 10,557,821.95/2,673.44
  6. Step 6: Final answer
    x = 3,949.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.