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Finding the Fourth Proportional to 962.37, 1,329.07 and 739.11

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Solution

The fourth proportional to 962.37, 1,329.07 and 739.11 is: 1,020.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    962.37 : 1,329.07 = 739.11 : x
  2. Step 2: Convert to fraction form
    962.37/1,329.07 = 739.11/x
  3. Step 3: Cross multiply
    962.37x = 1,329.07 × 739.11
  4. Step 4: Simplify right side
    962.37x = 982,328.93
  5. Step 5: Solve for x
    x = 982,328.93/962.37
  6. Step 6: Final answer
    x = 1,020.74

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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.