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Finding the Third Proportional to 4,779 and 6,799.50

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Solution

The third proportional to 4,779 and 6,799.50 is: 9,674.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,779 : 6,799.50 = 6,799.50 : x
  2. Step 2: Convert to fraction form
    4,779/6,799.50 = 6,799.50/x
  3. Step 3: Cross multiply
    4,779x = 6,799.50 × 6,799.50
  4. Step 4: Simplify right side
    4,779x = 46,233,200.25
  5. Step 5: Solve for x
    x = 46,233,200.25/4,779
  6. Step 6: Final answer
    x = 9,674.24

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.