Home / 1,091.26-1,633.65-1,089.82

Finding the Fourth Proportional to 1,091.26, 1,633.65 and 1,089.82

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Solution

The fourth proportional to 1,091.26, 1,633.65 and 1,089.82 is: 1,631.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091.26 : 1,633.65 = 1,089.82 : x
  2. Step 2: Convert to fraction form
    1,091.26/1,633.65 = 1,089.82/x
  3. Step 3: Cross multiply
    1,091.26x = 1,633.65 × 1,089.82
  4. Step 4: Simplify right side
    1,091.26x = 1,780,384.44
  5. Step 5: Solve for x
    x = 1,780,384.44/1,091.26
  6. Step 6: Final answer
    x = 1,631.49

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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.