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Finding the Fourth Proportional to 1,455.44, 2,008.50 and 792.28

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Solution

The fourth proportional to 1,455.44, 2,008.50 and 792.28 is: 1,093.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455.44 : 2,008.50 = 792.28 : x
  2. Step 2: Convert to fraction form
    1,455.44/2,008.50 = 792.28/x
  3. Step 3: Cross multiply
    1,455.44x = 2,008.50 × 792.28
  4. Step 4: Simplify right side
    1,455.44x = 1,591,294.38
  5. Step 5: Solve for x
    x = 1,591,294.38/1,455.44
  6. Step 6: Final answer
    x = 1,093.34

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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.