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Finding the Fourth Proportional to 1,717.11, 2,575.89 and 792.54

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Solution

The fourth proportional to 1,717.11, 2,575.89 and 792.54 is: 1,188.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,717.11 : 2,575.89 = 792.54 : x
  2. Step 2: Convert to fraction form
    1,717.11/2,575.89 = 792.54/x
  3. Step 3: Cross multiply
    1,717.11x = 2,575.89 × 792.54
  4. Step 4: Simplify right side
    1,717.11x = 2,041,495.86
  5. Step 5: Solve for x
    x = 2,041,495.86/1,717.11
  6. Step 6: Final answer
    x = 1,188.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.