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Finding the Third Proportional to 5,490 and 7,844.06

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Solution

The third proportional to 5,490 and 7,844.06 is: 11,207.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,490 : 7,844.06 = 7,844.06 : x
  2. Step 2: Convert to fraction form
    5,490/7,844.06 = 7,844.06/x
  3. Step 3: Cross multiply
    5,490x = 7,844.06 × 7,844.06
  4. Step 4: Simplify right side
    5,490x = 61,529,316.50
  5. Step 5: Solve for x
    x = 61,529,316.50/5,490
  6. Step 6: Final answer
    x = 11,207.53

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.