Home / 2,166.48-3,243.32-2,137.68

Finding the Fourth Proportional to 2,166.48, 3,243.32 and 2,137.68

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Solution

The fourth proportional to 2,166.48, 3,243.32 and 2,137.68 is: 3,200.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,166.48 : 3,243.32 = 2,137.68 : x
  2. Step 2: Convert to fraction form
    2,166.48/3,243.32 = 2,137.68/x
  3. Step 3: Cross multiply
    2,166.48x = 3,243.32 × 2,137.68
  4. Step 4: Simplify right side
    2,166.48x = 6,933,180.30
  5. Step 5: Solve for x
    x = 6,933,180.30/2,166.48
  6. Step 6: Final answer
    x = 3,200.21

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1.5x scale

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.