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Finding the Third Proportional to 2,927.81 and 6,890.91

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Solution

The third proportional to 2,927.81 and 6,890.91 is: 16,218.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,927.81 : 6,890.91 = 6,890.91 : x
  2. Step 2: Convert to fraction form
    2,927.81/6,890.91 = 6,890.91/x
  3. Step 3: Cross multiply
    2,927.81x = 6,890.91 × 6,890.91
  4. Step 4: Simplify right side
    2,927.81x = 47,484,588.95
  5. Step 5: Solve for x
    x = 47,484,588.95/2,927.81
  6. Step 6: Final answer
    x = 16,218.45

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These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.