Home / 4,130.91-6,198.57-1,939.67

Finding the Fourth Proportional to 4,130.91, 6,198.57 and 1,939.67

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Solution

The fourth proportional to 4,130.91, 6,198.57 and 1,939.67 is: 2,910.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,130.91 : 6,198.57 = 1,939.67 : x
  2. Step 2: Convert to fraction form
    4,130.91/6,198.57 = 1,939.67/x
  3. Step 3: Cross multiply
    4,130.91x = 6,198.57 × 1,939.67
  4. Step 4: Simplify right side
    4,130.91x = 12,023,149.28
  5. Step 5: Solve for x
    x = 12,023,149.28/4,130.91
  6. Step 6: Final answer
    x = 2,910.53

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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.