Home / 3,984.68-5,977.01-1,211.34

Finding the Fourth Proportional to 3,984.68, 5,977.01 and 1,211.34

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Solution

The fourth proportional to 3,984.68, 5,977.01 and 1,211.34 is: 1,817.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,984.68 : 5,977.01 = 1,211.34 : x
  2. Step 2: Convert to fraction form
    3,984.68/5,977.01 = 1,211.34/x
  3. Step 3: Cross multiply
    3,984.68x = 5,977.01 × 1,211.34
  4. Step 4: Simplify right side
    3,984.68x = 7,240,191.29
  5. Step 5: Solve for x
    x = 7,240,191.29/3,984.68
  6. Step 6: Final answer
    x = 1,817.01

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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.