Home / 3,784.86-5,677.56-1,187.73

Finding the Fourth Proportional to 3,784.86, 5,677.56 and 1,187.73

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Solution

The fourth proportional to 3,784.86, 5,677.56 and 1,187.73 is: 1,781.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,784.86 : 5,677.56 = 1,187.73 : x
  2. Step 2: Convert to fraction form
    3,784.86/5,677.56 = 1,187.73/x
  3. Step 3: Cross multiply
    3,784.86x = 5,677.56 × 1,187.73
  4. Step 4: Simplify right side
    3,784.86x = 6,743,408.34
  5. Step 5: Solve for x
    x = 6,743,408.34/3,784.86
  6. Step 6: Final answer
    x = 1,781.68

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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.