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Finding the Fourth Proportional to 1,233.00, 1,698.09 and 1,229.16

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Solution

The fourth proportional to 1,233.00, 1,698.09 and 1,229.16 is: 1,692.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,233.00 : 1,698.09 = 1,229.16 : x
  2. Step 2: Convert to fraction form
    1,233.00/1,698.09 = 1,229.16/x
  3. Step 3: Cross multiply
    1,233.00x = 1,698.09 × 1,229.16
  4. Step 4: Simplify right side
    1,233.00x = 2,087,219.11
  5. Step 5: Solve for x
    x = 2,087,219.11/1,233.00
  6. Step 6: Final answer
    x = 1,692.79

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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.