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Finding the Third Proportional to 1,433.75 and 3,140.63

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Solution

The third proportional to 1,433.75 and 3,140.63 is: 6,879.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,433.75 : 3,140.63 = 3,140.63 : x
  2. Step 2: Convert to fraction form
    1,433.75/3,140.63 = 3,140.63/x
  3. Step 3: Cross multiply
    1,433.75x = 3,140.63 × 3,140.63
  4. Step 4: Simplify right side
    1,433.75x = 9,863,525.39
  5. Step 5: Solve for x
    x = 9,863,525.39/1,433.75
  6. Step 6: Final answer
    x = 6,879.53

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.