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Finding the Third Proportional to 1,307.81 and 2,837.63

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Solution

The third proportional to 1,307.81 and 2,837.63 is: 6,156.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,307.81 : 2,837.63 = 2,837.63 : x
  2. Step 2: Convert to fraction form
    1,307.81/2,837.63 = 2,837.63/x
  3. Step 3: Cross multiply
    1,307.81x = 2,837.63 × 2,837.63
  4. Step 4: Simplify right side
    1,307.81x = 8,052,115.64
  5. Step 5: Solve for x
    x = 8,052,115.64/1,307.81
  6. Step 6: Final answer
    x = 6,156.93

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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.