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Finding the Fourth Proportional to 2,793.70, 4,192.09 and 1,698.83

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Solution

The fourth proportional to 2,793.70, 4,192.09 and 1,698.83 is: 2,549.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,793.70 : 4,192.09 = 1,698.83 : x
  2. Step 2: Convert to fraction form
    2,793.70/4,192.09 = 1,698.83/x
  3. Step 3: Cross multiply
    2,793.70x = 4,192.09 × 1,698.83
  4. Step 4: Simplify right side
    2,793.70x = 7,121,662.35
  5. Step 5: Solve for x
    x = 7,121,662.35/2,793.70
  6. Step 6: Final answer
    x = 2,549.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.