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Finding the Third Proportional to 1,169 and 1,887.50

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Solution

The third proportional to 1,169 and 1,887.50 is: 3,047.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,169 : 1,887.50 = 1,887.50 : x
  2. Step 2: Convert to fraction form
    1,169/1,887.50 = 1,887.50/x
  3. Step 3: Cross multiply
    1,169x = 1,887.50 × 1,887.50
  4. Step 4: Simplify right side
    1,169x = 3,562,656.25
  5. Step 5: Solve for x
    x = 3,562,656.25/1,169
  6. Step 6: Final answer
    x = 3,047.61

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.