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Finding the Third Proportional to 876.94 and 1,917.84

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Solution

The third proportional to 876.94 and 1,917.84 is: 4,194.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    876.94 : 1,917.84 = 1,917.84 : x
  2. Step 2: Convert to fraction form
    876.94/1,917.84 = 1,917.84/x
  3. Step 3: Cross multiply
    876.94x = 1,917.84 × 1,917.84
  4. Step 4: Simplify right side
    876.94x = 3,678,124.65
  5. Step 5: Solve for x
    x = 3,678,124.65/876.94
  6. Step 6: Final answer
    x = 4,194.28

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.