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Finding the Fourth Proportional to 2,878.90, 4,317.84 and 799.05

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Solution

The fourth proportional to 2,878.90, 4,317.84 and 799.05 is: 1,198.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,878.90 : 4,317.84 = 799.05 : x
  2. Step 2: Convert to fraction form
    2,878.90/4,317.84 = 799.05/x
  3. Step 3: Cross multiply
    2,878.90x = 4,317.84 × 799.05
  4. Step 4: Simplify right side
    2,878.90x = 3,450,183.54
  5. Step 5: Solve for x
    x = 3,450,183.54/2,878.90
  6. Step 6: Final answer
    x = 1,198.44

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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.