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Finding the Third Proportional to 3,390.19 and 6,275.81

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Solution

The third proportional to 3,390.19 and 6,275.81 is: 11,617.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.19 : 6,275.81 = 6,275.81 : x
  2. Step 2: Convert to fraction form
    3,390.19/6,275.81 = 6,275.81/x
  3. Step 3: Cross multiply
    3,390.19x = 6,275.81 × 6,275.81
  4. Step 4: Simplify right side
    3,390.19x = 39,385,822.54
  5. Step 5: Solve for x
    x = 39,385,822.54/3,390.19
  6. Step 6: Final answer
    x = 11,617.59

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Why These Related Problems?

These problems maintain the same ratio (1.85) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.