Home / 3,321.70-4,986.60-3,297.40

Finding the Fourth Proportional to 3,321.70, 4,986.60 and 3,297.40

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Solution

The fourth proportional to 3,321.70, 4,986.60 and 3,297.40 is: 4,950.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321.70 : 4,986.60 = 3,297.40 : x
  2. Step 2: Convert to fraction form
    3,321.70/4,986.60 = 3,297.40/x
  3. Step 3: Cross multiply
    3,321.70x = 4,986.60 × 3,297.40
  4. Step 4: Simplify right side
    3,321.70x = 16,442,814.84
  5. Step 5: Solve for x
    x = 16,442,814.84/3,321.70
  6. Step 6: Final answer
    x = 4,950.12

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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.