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Finding the Fourth Proportional to 1,867.69, 2,798.97 and 1,796.68

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Solution

The fourth proportional to 1,867.69, 2,798.97 and 1,796.68 is: 2,692.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,867.69 : 2,798.97 = 1,796.68 : x
  2. Step 2: Convert to fraction form
    1,867.69/2,798.97 = 1,796.68/x
  3. Step 3: Cross multiply
    1,867.69x = 2,798.97 × 1,796.68
  4. Step 4: Simplify right side
    1,867.69x = 5,028,853.42
  5. Step 5: Solve for x
    x = 5,028,853.42/1,867.69
  6. Step 6: Final answer
    x = 2,692.55

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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.