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Finding the Fourth Proportional to 2,673, 4,010.72 and 1,286.08

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Solution

The fourth proportional to 2,673, 4,010.72 and 1,286.08 is: 1,929.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,673 : 4,010.72 = 1,286.08 : x
  2. Step 2: Convert to fraction form
    2,673/4,010.72 = 1,286.08/x
  3. Step 3: Cross multiply
    2,673x = 4,010.72 × 1,286.08
  4. Step 4: Simplify right side
    2,673x = 5,158,090.32
  5. Step 5: Solve for x
    x = 5,158,090.32/2,673
  6. Step 6: Final answer
    x = 1,929.70

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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.