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Finding the Fourth Proportional to 797.45, 1,108.06 and 788.88

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Solution

The fourth proportional to 797.45, 1,108.06 and 788.88 is: 1,096.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    797.45 : 1,108.06 = 788.88 : x
  2. Step 2: Convert to fraction form
    797.45/1,108.06 = 788.88/x
  3. Step 3: Cross multiply
    797.45x = 1,108.06 × 788.88
  4. Step 4: Simplify right side
    797.45x = 874,128.56
  5. Step 5: Solve for x
    x = 874,128.56/797.45
  6. Step 6: Final answer
    x = 1,096.16

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.