Home / 3,968.06-5,475.62-2,175.25

Finding the Fourth Proportional to 3,968.06, 5,475.62 and 2,175.25

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Solution

The fourth proportional to 3,968.06, 5,475.62 and 2,175.25 is: 3,001.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,968.06 : 5,475.62 = 2,175.25 : x
  2. Step 2: Convert to fraction form
    3,968.06/5,475.62 = 2,175.25/x
  3. Step 3: Cross multiply
    3,968.06x = 5,475.62 × 2,175.25
  4. Step 4: Simplify right side
    3,968.06x = 11,910,831.44
  5. Step 5: Solve for x
    x = 11,910,831.44/3,968.06
  6. Step 6: Final answer
    x = 3,001.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.