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Finding the Third Proportional to 2,877.75 and 6,386.25

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Solution

The third proportional to 2,877.75 and 6,386.25 is: 14,172.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,877.75 : 6,386.25 = 6,386.25 : x
  2. Step 2: Convert to fraction form
    2,877.75/6,386.25 = 6,386.25/x
  3. Step 3: Cross multiply
    2,877.75x = 6,386.25 × 6,386.25
  4. Step 4: Simplify right side
    2,877.75x = 40,784,189.06
  5. Step 5: Solve for x
    x = 40,784,189.06/2,877.75
  6. Step 6: Final answer
    x = 14,172.25

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.