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Finding the Fourth Proportional to 2,676.54, 4,015.19 and 827.82

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Solution

The fourth proportional to 2,676.54, 4,015.19 and 827.82 is: 1,241.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,676.54 : 4,015.19 = 827.82 : x
  2. Step 2: Convert to fraction form
    2,676.54/4,015.19 = 827.82/x
  3. Step 3: Cross multiply
    2,676.54x = 4,015.19 × 827.82
  4. Step 4: Simplify right side
    2,676.54x = 3,323,834.51
  5. Step 5: Solve for x
    x = 3,323,834.51/2,676.54
  6. Step 6: Final answer
    x = 1,241.84

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1.5x scale

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.