Home / 2,728.35-4,072.48-2,637.09

Finding the Fourth Proportional to 2,728.35, 4,072.48 and 2,637.09

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Solution

The fourth proportional to 2,728.35, 4,072.48 and 2,637.09 is: 3,936.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,728.35 : 4,072.48 = 2,637.09 : x
  2. Step 2: Convert to fraction form
    2,728.35/4,072.48 = 2,637.09/x
  3. Step 3: Cross multiply
    2,728.35x = 4,072.48 × 2,637.09
  4. Step 4: Simplify right side
    2,728.35x = 10,739,489.69
  5. Step 5: Solve for x
    x = 10,739,489.69/2,728.35
  6. Step 6: Final answer
    x = 3,936.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.