Home / 3,984.80-5,971.74-2,521.34

Finding the Fourth Proportional to 3,984.80, 5,971.74 and 2,521.34

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Solution

The fourth proportional to 3,984.80, 5,971.74 and 2,521.34 is: 3,778.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,984.80 : 5,971.74 = 2,521.34 : x
  2. Step 2: Convert to fraction form
    3,984.80/5,971.74 = 2,521.34/x
  3. Step 3: Cross multiply
    3,984.80x = 5,971.74 × 2,521.34
  4. Step 4: Simplify right side
    3,984.80x = 15,056,763.54
  5. Step 5: Solve for x
    x = 15,056,763.54/3,984.80
  6. Step 6: Final answer
    x = 3,778.55

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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.