Home / 3,137.85-4,707.58-2,215.21

Finding the Fourth Proportional to 3,137.85, 4,707.58 and 2,215.21

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Solution

The fourth proportional to 3,137.85, 4,707.58 and 2,215.21 is: 3,323.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,137.85 : 4,707.58 = 2,215.21 : x
  2. Step 2: Convert to fraction form
    3,137.85/4,707.58 = 2,215.21/x
  3. Step 3: Cross multiply
    3,137.85x = 4,707.58 × 2,215.21
  4. Step 4: Simplify right side
    3,137.85x = 10,428,243.68
  5. Step 5: Solve for x
    x = 10,428,243.68/3,137.85
  6. Step 6: Final answer
    x = 3,323.37

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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.