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Finding the Fourth Proportional to 835.25, 1,152.46 and 481.17

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Solution

The fourth proportional to 835.25, 1,152.46 and 481.17 is: 663.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    835.25 : 1,152.46 = 481.17 : x
  2. Step 2: Convert to fraction form
    835.25/1,152.46 = 481.17/x
  3. Step 3: Cross multiply
    835.25x = 1,152.46 × 481.17
  4. Step 4: Simplify right side
    835.25x = 554,524.38
  5. Step 5: Solve for x
    x = 554,524.38/835.25
  6. Step 6: Final answer
    x = 663.91

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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.