Home / 3,185.82-4,777.95-1,336.95

Finding the Fourth Proportional to 3,185.82, 4,777.95 and 1,336.95

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Solution

The fourth proportional to 3,185.82, 4,777.95 and 1,336.95 is: 2,005.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,185.82 : 4,777.95 = 1,336.95 : x
  2. Step 2: Convert to fraction form
    3,185.82/4,777.95 = 1,336.95/x
  3. Step 3: Cross multiply
    3,185.82x = 4,777.95 × 1,336.95
  4. Step 4: Simplify right side
    3,185.82x = 6,387,880.25
  5. Step 5: Solve for x
    x = 6,387,880.25/3,185.82
  6. Step 6: Final answer
    x = 2,005.10

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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.