Home / 2,169.20-2,993.48-1,285.44

Finding the Fourth Proportional to 2,169.20, 2,993.48 and 1,285.44

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Solution

The fourth proportional to 2,169.20, 2,993.48 and 1,285.44 is: 1,773.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,169.20 : 2,993.48 = 1,285.44 : x
  2. Step 2: Convert to fraction form
    2,169.20/2,993.48 = 1,285.44/x
  3. Step 3: Cross multiply
    2,169.20x = 2,993.48 × 1,285.44
  4. Step 4: Simplify right side
    2,169.20x = 3,847,938.93
  5. Step 5: Solve for x
    x = 3,847,938.93/2,169.20
  6. Step 6: Final answer
    x = 1,773.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.