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Finding the Fourth Proportional to 997.44, 1,376.64 and 735.12

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Solution

The fourth proportional to 997.44, 1,376.64 and 735.12 is: 1,014.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    997.44 : 1,376.64 = 735.12 : x
  2. Step 2: Convert to fraction form
    997.44/1,376.64 = 735.12/x
  3. Step 3: Cross multiply
    997.44x = 1,376.64 × 735.12
  4. Step 4: Simplify right side
    997.44x = 1,011,995.60
  5. Step 5: Solve for x
    x = 1,011,995.60/997.44
  6. Step 6: Final answer
    x = 1,014.59

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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.