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Finding the Third Proportional to 3,240.63 and 4,681.55

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Solution

The third proportional to 3,240.63 and 4,681.55 is: 6,763.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,240.63 : 4,681.55 = 4,681.55 : x
  2. Step 2: Convert to fraction form
    3,240.63/4,681.55 = 4,681.55/x
  3. Step 3: Cross multiply
    3,240.63x = 4,681.55 × 4,681.55
  4. Step 4: Simplify right side
    3,240.63x = 21,916,881.14
  5. Step 5: Solve for x
    x = 21,916,881.14/3,240.63
  6. Step 6: Final answer
    x = 6,763.15

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.