Home / 3,971.04-5,954.76-2,121.84

Finding the Fourth Proportional to 3,971.04, 5,954.76 and 2,121.84

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Solution

The fourth proportional to 3,971.04, 5,954.76 and 2,121.84 is: 3,181.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,971.04 : 5,954.76 = 2,121.84 : x
  2. Step 2: Convert to fraction form
    3,971.04/5,954.76 = 2,121.84/x
  3. Step 3: Cross multiply
    3,971.04x = 5,954.76 × 2,121.84
  4. Step 4: Simplify right side
    3,971.04x = 12,635,047.96
  5. Step 5: Solve for x
    x = 12,635,047.96/3,971.04
  6. Step 6: Final answer
    x = 3,181.80

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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.