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Finding the Third Proportional to 1,779 and 2,585.50

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Solution

The third proportional to 1,779 and 2,585.50 is: 3,757.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,779 : 2,585.50 = 2,585.50 : x
  2. Step 2: Convert to fraction form
    1,779/2,585.50 = 2,585.50/x
  3. Step 3: Cross multiply
    1,779x = 2,585.50 × 2,585.50
  4. Step 4: Simplify right side
    1,779x = 6,684,810.25
  5. Step 5: Solve for x
    x = 6,684,810.25/1,779
  6. Step 6: Final answer
    x = 3,757.62

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.