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Finding the Third Proportional to 3,143.81 and 6,492.66

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Solution

The third proportional to 3,143.81 and 6,492.66 is: 13,408.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,143.81 : 6,492.66 = 6,492.66 : x
  2. Step 2: Convert to fraction form
    3,143.81/6,492.66 = 6,492.66/x
  3. Step 3: Cross multiply
    3,143.81x = 6,492.66 × 6,492.66
  4. Step 4: Simplify right side
    3,143.81x = 42,154,585.18
  5. Step 5: Solve for x
    x = 42,154,585.18/3,143.81
  6. Step 6: Final answer
    x = 13,408.75

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.