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Finding the Third Proportional to 1,554.61 and 3,387.87

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Solution

The third proportional to 1,554.61 and 3,387.87 is: 7,382.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,554.61 : 3,387.87 = 3,387.87 : x
  2. Step 2: Convert to fraction form
    1,554.61/3,387.87 = 3,387.87/x
  3. Step 3: Cross multiply
    1,554.61x = 3,387.87 × 3,387.87
  4. Step 4: Simplify right side
    1,554.61x = 11,477,644.08
  5. Step 5: Solve for x
    x = 11,477,644.08/1,554.61
  6. Step 6: Final answer
    x = 7,382.98

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.