Home / 3,356.19-4,632.21-1,940.79

Finding the Fourth Proportional to 3,356.19, 4,632.21 and 1,940.79

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Solution

The fourth proportional to 3,356.19, 4,632.21 and 1,940.79 is: 2,678.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,356.19 : 4,632.21 = 1,940.79 : x
  2. Step 2: Convert to fraction form
    3,356.19/4,632.21 = 1,940.79/x
  3. Step 3: Cross multiply
    3,356.19x = 4,632.21 × 1,940.79
  4. Step 4: Simplify right side
    3,356.19x = 8,990,146.85
  5. Step 5: Solve for x
    x = 8,990,146.85/3,356.19
  6. Step 6: Final answer
    x = 2,678.68

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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.