Home / 3,028.20-4,176.13-1,964.86

Finding the Fourth Proportional to 3,028.20, 4,176.13 and 1,964.86

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Solution

The fourth proportional to 3,028.20, 4,176.13 and 1,964.86 is: 2,709.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,028.20 : 4,176.13 = 1,964.86 : x
  2. Step 2: Convert to fraction form
    3,028.20/4,176.13 = 1,964.86/x
  3. Step 3: Cross multiply
    3,028.20x = 4,176.13 × 1,964.86
  4. Step 4: Simplify right side
    3,028.20x = 8,205,510.79
  5. Step 5: Solve for x
    x = 8,205,510.79/3,028.20
  6. Step 6: Final answer
    x = 2,709.70

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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.