Home / 3,022.41-4,169.50-2,138.70

Finding the Fourth Proportional to 3,022.41, 4,169.50 and 2,138.70

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Solution

The fourth proportional to 3,022.41, 4,169.50 and 2,138.70 is: 2,950.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,022.41 : 4,169.50 = 2,138.70 : x
  2. Step 2: Convert to fraction form
    3,022.41/4,169.50 = 2,138.70/x
  3. Step 3: Cross multiply
    3,022.41x = 4,169.50 × 2,138.70
  4. Step 4: Simplify right side
    3,022.41x = 8,917,309.65
  5. Step 5: Solve for x
    x = 8,917,309.65/3,022.41
  6. Step 6: Final answer
    x = 2,950.40

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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.