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Finding the Fourth Proportional to 795.97, 1,094.97 and 648.28

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Solution

The fourth proportional to 795.97, 1,094.97 and 648.28 is: 891.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    795.97 : 1,094.97 = 648.28 : x
  2. Step 2: Convert to fraction form
    795.97/1,094.97 = 648.28/x
  3. Step 3: Cross multiply
    795.97x = 1,094.97 × 648.28
  4. Step 4: Simplify right side
    795.97x = 709,847.15
  5. Step 5: Solve for x
    x = 709,847.15/795.97
  6. Step 6: Final answer
    x = 891.80

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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.