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Finding the Fourth Proportional to 835.42, 1,152.99 and 481.33

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Solution

The fourth proportional to 835.42, 1,152.99 and 481.33 is: 664.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    835.42 : 1,152.99 = 481.33 : x
  2. Step 2: Convert to fraction form
    835.42/1,152.99 = 481.33/x
  3. Step 3: Cross multiply
    835.42x = 1,152.99 × 481.33
  4. Step 4: Simplify right side
    835.42x = 554,968.68
  5. Step 5: Solve for x
    x = 554,968.68/835.42
  6. Step 6: Final answer
    x = 664.30

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Double scale
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1.5x scale

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.