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Finding the Fourth Proportional to 1,741.03, 2,612.39 and 863.61

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Solution

The fourth proportional to 1,741.03, 2,612.39 and 863.61 is: 1,295.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,741.03 : 2,612.39 = 863.61 : x
  2. Step 2: Convert to fraction form
    1,741.03/2,612.39 = 863.61/x
  3. Step 3: Cross multiply
    1,741.03x = 2,612.39 × 863.61
  4. Step 4: Simplify right side
    1,741.03x = 2,256,086.13
  5. Step 5: Solve for x
    x = 2,256,086.13/1,741.03
  6. Step 6: Final answer
    x = 1,295.84

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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.