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Finding the Fourth Proportional to 694.37, 952.16 and 671.09

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Solution

The fourth proportional to 694.37, 952.16 and 671.09 is: 920.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    694.37 : 952.16 = 671.09 : x
  2. Step 2: Convert to fraction form
    694.37/952.16 = 671.09/x
  3. Step 3: Cross multiply
    694.37x = 952.16 × 671.09
  4. Step 4: Simplify right side
    694.37x = 638,976.94
  5. Step 5: Solve for x
    x = 638,976.94/694.37
  6. Step 6: Final answer
    x = 920.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.