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Finding the Fourth Proportional to 963.37, 1,330.45 and 740.11

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Solution

The fourth proportional to 963.37, 1,330.45 and 740.11 is: 1,022.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    963.37 : 1,330.45 = 740.11 : x
  2. Step 2: Convert to fraction form
    963.37/1,330.45 = 740.11/x
  3. Step 3: Cross multiply
    963.37x = 1,330.45 × 740.11
  4. Step 4: Simplify right side
    963.37x = 984,679.35
  5. Step 5: Solve for x
    x = 984,679.35/963.37
  6. Step 6: Final answer
    x = 1,022.12

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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.