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Finding the Third Proportional to 864.63 and 1,876.13

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Solution

The third proportional to 864.63 and 1,876.13 is: 4,070.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    864.63 : 1,876.13 = 1,876.13 : x
  2. Step 2: Convert to fraction form
    864.63/1,876.13 = 1,876.13/x
  3. Step 3: Cross multiply
    864.63x = 1,876.13 × 1,876.13
  4. Step 4: Simplify right side
    864.63x = 3,519,845.02
  5. Step 5: Solve for x
    x = 3,519,845.02/864.63
  6. Step 6: Final answer
    x = 4,070.95

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.