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Finding the Fourth Proportional to 697.20, 967.38 and 677.04

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Solution

The fourth proportional to 697.20, 967.38 and 677.04 is: 939.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    697.20 : 967.38 = 677.04 : x
  2. Step 2: Convert to fraction form
    697.20/967.38 = 677.04/x
  3. Step 3: Cross multiply
    697.20x = 967.38 × 677.04
  4. Step 4: Simplify right side
    697.20x = 654,954.96
  5. Step 5: Solve for x
    x = 654,954.96/697.20
  6. Step 6: Final answer
    x = 939.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.