Home / 2,773.21-3,827.37-1,778.12

Finding the Fourth Proportional to 2,773.21, 3,827.37 and 1,778.12

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Solution

The fourth proportional to 2,773.21, 3,827.37 and 1,778.12 is: 2,454.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,773.21 : 3,827.37 = 1,778.12 : x
  2. Step 2: Convert to fraction form
    2,773.21/3,827.37 = 1,778.12/x
  3. Step 3: Cross multiply
    2,773.21x = 3,827.37 × 1,778.12
  4. Step 4: Simplify right side
    2,773.21x = 6,805,523.14
  5. Step 5: Solve for x
    x = 6,805,523.14/2,773.21
  6. Step 6: Final answer
    x = 2,454.03

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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.