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Finding the Fourth Proportional to 968.31, 1,334.04 and 669.27

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Solution

The fourth proportional to 968.31, 1,334.04 and 669.27 is: 922.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    968.31 : 1,334.04 = 669.27 : x
  2. Step 2: Convert to fraction form
    968.31/1,334.04 = 669.27/x
  3. Step 3: Cross multiply
    968.31x = 1,334.04 × 669.27
  4. Step 4: Simplify right side
    968.31x = 892,832.95
  5. Step 5: Solve for x
    x = 892,832.95/968.31
  6. Step 6: Final answer
    x = 922.05

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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.