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Finding the Fourth Proportional to 1,879.15, 2,591.02 and 1,505.83

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Solution

The fourth proportional to 1,879.15, 2,591.02 and 1,505.83 is: 2,076.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,879.15 : 2,591.02 = 1,505.83 : x
  2. Step 2: Convert to fraction form
    1,879.15/2,591.02 = 1,505.83/x
  3. Step 3: Cross multiply
    1,879.15x = 2,591.02 × 1,505.83
  4. Step 4: Simplify right side
    1,879.15x = 3,901,628.12
  5. Step 5: Solve for x
    x = 3,901,628.12/1,879.15
  6. Step 6: Final answer
    x = 2,076.27

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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.