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Finding the Third Proportional to 1,178.93 and 1,819.65

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Solution

The third proportional to 1,178.93 and 1,819.65 is: 2,808.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178.93 : 1,819.65 = 1,819.65 : x
  2. Step 2: Convert to fraction form
    1,178.93/1,819.65 = 1,819.65/x
  3. Step 3: Cross multiply
    1,178.93x = 1,819.65 × 1,819.65
  4. Step 4: Simplify right side
    1,178.93x = 3,311,134.65
  5. Step 5: Solve for x
    x = 3,311,134.65/1,178.93
  6. Step 6: Final answer
    x = 2,808.59

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.