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Finding the Third Proportional to 2,643 and 4,759.50

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Solution

The third proportional to 2,643 and 4,759.50 is: 8,570.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,643 : 4,759.50 = 4,759.50 : x
  2. Step 2: Convert to fraction form
    2,643/4,759.50 = 4,759.50/x
  3. Step 3: Cross multiply
    2,643x = 4,759.50 × 4,759.50
  4. Step 4: Simplify right side
    2,643x = 22,652,840.25
  5. Step 5: Solve for x
    x = 22,652,840.25/2,643
  6. Step 6: Final answer
    x = 8,570.88

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Why These Related Problems?

These problems maintain the same ratio (1.80) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.