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Finding the Fourth Proportional to 673.44, 930.94 and 667.24

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Solution

The fourth proportional to 673.44, 930.94 and 667.24 is: 922.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    673.44 : 930.94 = 667.24 : x
  2. Step 2: Convert to fraction form
    673.44/930.94 = 667.24/x
  3. Step 3: Cross multiply
    673.44x = 930.94 × 667.24
  4. Step 4: Simplify right side
    673.44x = 621,160.41
  5. Step 5: Solve for x
    x = 621,160.41/673.44
  6. Step 6: Final answer
    x = 922.37

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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.