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Finding the Fourth Proportional to 2,760.01, 4,145 and 1,722.03

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Solution

The fourth proportional to 2,760.01, 4,145 and 1,722.03 is: 2,586.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,760.01 : 4,145 = 1,722.03 : x
  2. Step 2: Convert to fraction form
    2,760.01/4,145 = 1,722.03/x
  3. Step 3: Cross multiply
    2,760.01x = 4,145 × 1,722.03
  4. Step 4: Simplify right side
    2,760.01x = 7,137,814.35
  5. Step 5: Solve for x
    x = 7,137,814.35/2,760.01
  6. Step 6: Final answer
    x = 2,586.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.