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Finding the Fourth Proportional to 648.27, 968.42 and 637.34

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Solution

The fourth proportional to 648.27, 968.42 and 637.34 is: 952.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    648.27 : 968.42 = 637.34 : x
  2. Step 2: Convert to fraction form
    648.27/968.42 = 637.34/x
  3. Step 3: Cross multiply
    648.27x = 968.42 × 637.34
  4. Step 4: Simplify right side
    648.27x = 617,209.55
  5. Step 5: Solve for x
    x = 617,209.55/648.27
  6. Step 6: Final answer
    x = 952.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.