Home / 3,980.11-5,968.14-2,107.03

Finding the Fourth Proportional to 3,980.11, 5,968.14 and 2,107.03

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Solution

The fourth proportional to 3,980.11, 5,968.14 and 2,107.03 is: 3,159.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,980.11 : 5,968.14 = 2,107.03 : x
  2. Step 2: Convert to fraction form
    3,980.11/5,968.14 = 2,107.03/x
  3. Step 3: Cross multiply
    3,980.11x = 5,968.14 × 2,107.03
  4. Step 4: Simplify right side
    3,980.11x = 12,575,050.02
  5. Step 5: Solve for x
    x = 12,575,050.02/3,980.11
  6. Step 6: Final answer
    x = 3,159.47

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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.