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Finding the Third Proportional to 2,547.50 and 3,943

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Solution

The third proportional to 2,547.50 and 3,943 is: 6,102.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,547.50 : 3,943 = 3,943 : x
  2. Step 2: Convert to fraction form
    2,547.50/3,943 = 3,943/x
  3. Step 3: Cross multiply
    2,547.50x = 3,943 × 3,943
  4. Step 4: Simplify right side
    2,547.50x = 15,547,249
  5. Step 5: Solve for x
    x = 15,547,249/2,547.50
  6. Step 6: Final answer
    x = 6,102.94

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.