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Finding the Fourth Proportional to 930.09, 1,283.27 and 732.99

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Solution

The fourth proportional to 930.09, 1,283.27 and 732.99 is: 1,011.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    930.09 : 1,283.27 = 732.99 : x
  2. Step 2: Convert to fraction form
    930.09/1,283.27 = 732.99/x
  3. Step 3: Cross multiply
    930.09x = 1,283.27 × 732.99
  4. Step 4: Simplify right side
    930.09x = 940,620.41
  5. Step 5: Solve for x
    x = 940,620.41/930.09
  6. Step 6: Final answer
    x = 1,011.32

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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.