Home / 3,656.58-5,485.32-1,190.74

Finding the Fourth Proportional to 3,656.58, 5,485.32 and 1,190.74

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Solution

The fourth proportional to 3,656.58, 5,485.32 and 1,190.74 is: 1,786.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,656.58 : 5,485.32 = 1,190.74 : x
  2. Step 2: Convert to fraction form
    3,656.58/5,485.32 = 1,190.74/x
  3. Step 3: Cross multiply
    3,656.58x = 5,485.32 × 1,190.74
  4. Step 4: Simplify right side
    3,656.58x = 6,531,556.56
  5. Step 5: Solve for x
    x = 6,531,556.56/3,656.58
  6. Step 6: Final answer
    x = 1,786.25

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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.