Home / 3,657.75-5,486.05-1,192.55

Finding the Fourth Proportional to 3,657.75, 5,486.05 and 1,192.55

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Solution

The fourth proportional to 3,657.75, 5,486.05 and 1,192.55 is: 1,788.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,657.75 : 5,486.05 = 1,192.55 : x
  2. Step 2: Convert to fraction form
    3,657.75/5,486.05 = 1,192.55/x
  3. Step 3: Cross multiply
    3,657.75x = 5,486.05 × 1,192.55
  4. Step 4: Simplify right side
    3,657.75x = 6,542,356.28
  5. Step 5: Solve for x
    x = 6,542,356.28/3,657.75
  6. Step 6: Final answer
    x = 1,788.63

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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.