Home / 3,007.22-4,147.90-1,960.70

Finding the Fourth Proportional to 3,007.22, 4,147.90 and 1,960.70

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Solution

The fourth proportional to 3,007.22, 4,147.90 and 1,960.70 is: 2,704.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,007.22 : 4,147.90 = 1,960.70 : x
  2. Step 2: Convert to fraction form
    3,007.22/4,147.90 = 1,960.70/x
  3. Step 3: Cross multiply
    3,007.22x = 4,147.90 × 1,960.70
  4. Step 4: Simplify right side
    3,007.22x = 8,132,761.89
  5. Step 5: Solve for x
    x = 8,132,761.89/3,007.22
  6. Step 6: Final answer
    x = 2,704.42

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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.