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Finding the Fourth Proportional to 807.94, 1,117.29 and 793.36

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Solution

The fourth proportional to 807.94, 1,117.29 and 793.36 is: 1,097.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    807.94 : 1,117.29 = 793.36 : x
  2. Step 2: Convert to fraction form
    807.94/1,117.29 = 793.36/x
  3. Step 3: Cross multiply
    807.94x = 1,117.29 × 793.36
  4. Step 4: Simplify right side
    807.94x = 886,413.19
  5. Step 5: Solve for x
    x = 886,413.19/807.94
  6. Step 6: Final answer
    x = 1,097.13

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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.