Home / 3,185.21-4,395.48-1,768.98

Finding the Fourth Proportional to 3,185.21, 4,395.48 and 1,768.98

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Solution

The fourth proportional to 3,185.21, 4,395.48 and 1,768.98 is: 2,441.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,185.21 : 4,395.48 = 1,768.98 : x
  2. Step 2: Convert to fraction form
    3,185.21/4,395.48 = 1,768.98/x
  3. Step 3: Cross multiply
    3,185.21x = 4,395.48 × 1,768.98
  4. Step 4: Simplify right side
    3,185.21x = 7,775,516.21
  5. Step 5: Solve for x
    x = 7,775,516.21/3,185.21
  6. Step 6: Final answer
    x = 2,441.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.