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Finding the Fourth Proportional to 798.33, 1,095.08 and 791.40

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Solution

The fourth proportional to 798.33, 1,095.08 and 791.40 is: 1,085.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    798.33 : 1,095.08 = 791.40 : x
  2. Step 2: Convert to fraction form
    798.33/1,095.08 = 791.40/x
  3. Step 3: Cross multiply
    798.33x = 1,095.08 × 791.40
  4. Step 4: Simplify right side
    798.33x = 866,648.29
  5. Step 5: Solve for x
    x = 866,648.29/798.33
  6. Step 6: Final answer
    x = 1,085.58

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.