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Finding the Third Proportional to 1,358.06 and 2,975.81

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Solution

The third proportional to 1,358.06 and 2,975.81 is: 6,520.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,358.06 : 2,975.81 = 2,975.81 : x
  2. Step 2: Convert to fraction form
    1,358.06/2,975.81 = 2,975.81/x
  3. Step 3: Cross multiply
    1,358.06x = 2,975.81 × 2,975.81
  4. Step 4: Simplify right side
    1,358.06x = 8,855,460.04
  5. Step 5: Solve for x
    x = 8,855,460.04/1,358.06
  6. Step 6: Final answer
    x = 6,520.66

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.