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Finding the Fourth Proportional to 1,326.90, 1,832.66 and 884.03

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Solution

The fourth proportional to 1,326.90, 1,832.66 and 884.03 is: 1,220.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326.90 : 1,832.66 = 884.03 : x
  2. Step 2: Convert to fraction form
    1,326.90/1,832.66 = 884.03/x
  3. Step 3: Cross multiply
    1,326.90x = 1,832.66 × 884.03
  4. Step 4: Simplify right side
    1,326.90x = 1,620,133.21
  5. Step 5: Solve for x
    x = 1,620,133.21/1,326.90
  6. Step 6: Final answer
    x = 1,220.99

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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.