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Finding the Fourth Proportional to 2,796.60, 4,194.94 and 1,698.78

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Solution

The fourth proportional to 2,796.60, 4,194.94 and 1,698.78 is: 2,548.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,796.60 : 4,194.94 = 1,698.78 : x
  2. Step 2: Convert to fraction form
    2,796.60/4,194.94 = 1,698.78/x
  3. Step 3: Cross multiply
    2,796.60x = 4,194.94 × 1,698.78
  4. Step 4: Simplify right side
    2,796.60x = 7,126,280.17
  5. Step 5: Solve for x
    x = 7,126,280.17/2,796.60
  6. Step 6: Final answer
    x = 2,548.19

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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.