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Finding the Third Proportional to 803.67 and 1,698.05

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Solution

The third proportional to 803.67 and 1,698.05 is: 3,587.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    803.67 : 1,698.05 = 1,698.05 : x
  2. Step 2: Convert to fraction form
    803.67/1,698.05 = 1,698.05/x
  3. Step 3: Cross multiply
    803.67x = 1,698.05 × 1,698.05
  4. Step 4: Simplify right side
    803.67x = 2,883,363.19
  5. Step 5: Solve for x
    x = 2,883,363.19/803.67
  6. Step 6: Final answer
    x = 3,587.74

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.