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Finding the Fourth Proportional to 1,831.48, 2,745.48 and 676.96

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Solution

The fourth proportional to 1,831.48, 2,745.48 and 676.96 is: 1,014.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,831.48 : 2,745.48 = 676.96 : x
  2. Step 2: Convert to fraction form
    1,831.48/2,745.48 = 676.96/x
  3. Step 3: Cross multiply
    1,831.48x = 2,745.48 × 676.96
  4. Step 4: Simplify right side
    1,831.48x = 1,858,580.14
  5. Step 5: Solve for x
    x = 1,858,580.14/1,831.48
  6. Step 6: Final answer
    x = 1,014.80

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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.