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Finding the Fourth Proportional to 701.23, 967.88 and 668.28

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Solution

The fourth proportional to 701.23, 967.88 and 668.28 is: 922.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    701.23 : 967.88 = 668.28 : x
  2. Step 2: Convert to fraction form
    701.23/967.88 = 668.28/x
  3. Step 3: Cross multiply
    701.23x = 967.88 × 668.28
  4. Step 4: Simplify right side
    701.23x = 646,814.85
  5. Step 5: Solve for x
    x = 646,814.85/701.23
  6. Step 6: Final answer
    x = 922.40

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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.