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Finding the Third Proportional to 889 and 2,077.50

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Solution

The third proportional to 889 and 2,077.50 is: 4,854.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    889 : 2,077.50 = 2,077.50 : x
  2. Step 2: Convert to fraction form
    889/2,077.50 = 2,077.50/x
  3. Step 3: Cross multiply
    889x = 2,077.50 × 2,077.50
  4. Step 4: Simplify right side
    889x = 4,316,006.25
  5. Step 5: Solve for x
    x = 4,316,006.25/889
  6. Step 6: Final answer
    x = 4,854.90

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.