Home / 3,784.60-5,677.06-1,187.56

Finding the Fourth Proportional to 3,784.60, 5,677.06 and 1,187.56

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Solution

The fourth proportional to 3,784.60, 5,677.06 and 1,187.56 is: 1,781.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,784.60 : 5,677.06 = 1,187.56 : x
  2. Step 2: Convert to fraction form
    3,784.60/5,677.06 = 1,187.56/x
  3. Step 3: Cross multiply
    3,784.60x = 5,677.06 × 1,187.56
  4. Step 4: Simplify right side
    3,784.60x = 6,741,849.37
  5. Step 5: Solve for x
    x = 6,741,849.37/3,784.60
  6. Step 6: Final answer
    x = 1,781.39

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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.