Home / 3,086.21-4,627.46-1,185.68

Finding the Fourth Proportional to 3,086.21, 4,627.46 and 1,185.68

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Solution

The fourth proportional to 3,086.21, 4,627.46 and 1,185.68 is: 1,777.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,086.21 : 4,627.46 = 1,185.68 : x
  2. Step 2: Convert to fraction form
    3,086.21/4,627.46 = 1,185.68/x
  3. Step 3: Cross multiply
    3,086.21x = 4,627.46 × 1,185.68
  4. Step 4: Simplify right side
    3,086.21x = 5,486,701.31
  5. Step 5: Solve for x
    x = 5,486,701.31/3,086.21
  6. Step 6: Final answer
    x = 1,777.81

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1.5x scale

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.