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Finding the Fourth Proportional to 2,773.13, 3,827.43 and 1,778.37

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Solution

The fourth proportional to 2,773.13, 3,827.43 and 1,778.37 is: 2,454.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,773.13 : 3,827.43 = 1,778.37 : x
  2. Step 2: Convert to fraction form
    2,773.13/3,827.43 = 1,778.37/x
  3. Step 3: Cross multiply
    2,773.13x = 3,827.43 × 1,778.37
  4. Step 4: Simplify right side
    2,773.13x = 6,806,586.69
  5. Step 5: Solve for x
    x = 6,806,586.69/2,773.13
  6. Step 6: Final answer
    x = 2,454.48

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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.