Home / 3,061.86-4,223.61-1,940.90

Finding the Fourth Proportional to 3,061.86, 4,223.61 and 1,940.90

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Solution

The fourth proportional to 3,061.86, 4,223.61 and 1,940.90 is: 2,677.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,061.86 : 4,223.61 = 1,940.90 : x
  2. Step 2: Convert to fraction form
    3,061.86/4,223.61 = 1,940.90/x
  3. Step 3: Cross multiply
    3,061.86x = 4,223.61 × 1,940.90
  4. Step 4: Simplify right side
    3,061.86x = 8,197,604.65
  5. Step 5: Solve for x
    x = 8,197,604.65/3,061.86
  6. Step 6: Final answer
    x = 2,677.33

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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.