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Finding the Third Proportional to 1,887.50 and 3,907.75

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Solution

The third proportional to 1,887.50 and 3,907.75 is: 8,090.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,887.50 : 3,907.75 = 3,907.75 : x
  2. Step 2: Convert to fraction form
    1,887.50/3,907.75 = 3,907.75/x
  3. Step 3: Cross multiply
    1,887.50x = 3,907.75 × 3,907.75
  4. Step 4: Simplify right side
    1,887.50x = 15,270,510.06
  5. Step 5: Solve for x
    x = 15,270,510.06/1,887.50
  6. Step 6: Final answer
    x = 8,090.34

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.