Home / 3,321.10-4,982.55-2,958.40

Finding the Fourth Proportional to 3,321.10, 4,982.55 and 2,958.40

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Solution

The fourth proportional to 3,321.10, 4,982.55 and 2,958.40 is: 4,438.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321.10 : 4,982.55 = 2,958.40 : x
  2. Step 2: Convert to fraction form
    3,321.10/4,982.55 = 2,958.40/x
  3. Step 3: Cross multiply
    3,321.10x = 4,982.55 × 2,958.40
  4. Step 4: Simplify right side
    3,321.10x = 14,740,375.92
  5. Step 5: Solve for x
    x = 14,740,375.92/3,321.10
  6. Step 6: Final answer
    x = 4,438.40

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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.