Home / 3,357.38-4,632.90-1,940.78

Finding the Fourth Proportional to 3,357.38, 4,632.90 and 1,940.78

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Solution

The fourth proportional to 3,357.38, 4,632.90 and 1,940.78 is: 2,678.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,357.38 : 4,632.90 = 1,940.78 : x
  2. Step 2: Convert to fraction form
    3,357.38/4,632.90 = 1,940.78/x
  3. Step 3: Cross multiply
    3,357.38x = 4,632.90 × 1,940.78
  4. Step 4: Simplify right side
    3,357.38x = 8,991,439.66
  5. Step 5: Solve for x
    x = 8,991,439.66/3,357.38
  6. Step 6: Final answer
    x = 2,678.11

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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.