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Finding the Fourth Proportional to 692.01, 955.03 and 397.34

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Solution

The fourth proportional to 692.01, 955.03 and 397.34 is: 548.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    692.01 : 955.03 = 397.34 : x
  2. Step 2: Convert to fraction form
    692.01/955.03 = 397.34/x
  3. Step 3: Cross multiply
    692.01x = 955.03 × 397.34
  4. Step 4: Simplify right side
    692.01x = 379,470.25
  5. Step 5: Solve for x
    x = 379,470.25/692.01
  6. Step 6: Final answer
    x = 548.36

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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.