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Finding the Fourth Proportional to 967.27, 1,333.50 and 648.11

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Solution

The fourth proportional to 967.27, 1,333.50 and 648.11 is: 893.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    967.27 : 1,333.50 = 648.11 : x
  2. Step 2: Convert to fraction form
    967.27/1,333.50 = 648.11/x
  3. Step 3: Cross multiply
    967.27x = 1,333.50 × 648.11
  4. Step 4: Simplify right side
    967.27x = 864,254.69
  5. Step 5: Solve for x
    x = 864,254.69/967.27
  6. Step 6: Final answer
    x = 893.50

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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.