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Finding the Fourth Proportional to 793.90, 1,095.41 and 607.60

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Solution

The fourth proportional to 793.90, 1,095.41 and 607.60 is: 838.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    793.90 : 1,095.41 = 607.60 : x
  2. Step 2: Convert to fraction form
    793.90/1,095.41 = 607.60/x
  3. Step 3: Cross multiply
    793.90x = 1,095.41 × 607.60
  4. Step 4: Simplify right side
    793.90x = 665,568.08
  5. Step 5: Solve for x
    x = 665,568.08/793.90
  6. Step 6: Final answer
    x = 838.35

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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.