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Finding the Fourth Proportional to 1,627.66, 2,245.59 and 997.96

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Solution

The fourth proportional to 1,627.66, 2,245.59 and 997.96 is: 1,376.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,627.66 : 2,245.59 = 997.96 : x
  2. Step 2: Convert to fraction form
    1,627.66/2,245.59 = 997.96/x
  3. Step 3: Cross multiply
    1,627.66x = 2,245.59 × 997.96
  4. Step 4: Simplify right side
    1,627.66x = 2,241,009.00
  5. Step 5: Solve for x
    x = 2,241,009.00/1,627.66
  6. Step 6: Final answer
    x = 1,376.83

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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.