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Finding the Third Proportional to 1,247.63 and 1,666.13

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Solution

The third proportional to 1,247.63 and 1,666.13 is: 2,225.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247.63 : 1,666.13 = 1,666.13 : x
  2. Step 2: Convert to fraction form
    1,247.63/1,666.13 = 1,666.13/x
  3. Step 3: Cross multiply
    1,247.63x = 1,666.13 × 1,666.13
  4. Step 4: Simplify right side
    1,247.63x = 2,775,972.52
  5. Step 5: Solve for x
    x = 2,775,972.52/1,247.63
  6. Step 6: Final answer
    x = 2,225.01

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.