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Finding the Fourth Proportional to 942.22, 1,299 and 845.02

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Solution

The fourth proportional to 942.22, 1,299 and 845.02 is: 1,164.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    942.22 : 1,299 = 845.02 : x
  2. Step 2: Convert to fraction form
    942.22/1,299 = 845.02/x
  3. Step 3: Cross multiply
    942.22x = 1,299 × 845.02
  4. Step 4: Simplify right side
    942.22x = 1,097,680.98
  5. Step 5: Solve for x
    x = 1,097,680.98/942.22
  6. Step 6: Final answer
    x = 1,164.99

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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.