Home / 3,212.77-4,433.38-2,166.25

Finding the Fourth Proportional to 3,212.77, 4,433.38 and 2,166.25

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Solution

The fourth proportional to 3,212.77, 4,433.38 and 2,166.25 is: 2,989.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.77 : 4,433.38 = 2,166.25 : x
  2. Step 2: Convert to fraction form
    3,212.77/4,433.38 = 2,166.25/x
  3. Step 3: Cross multiply
    3,212.77x = 4,433.38 × 2,166.25
  4. Step 4: Simplify right side
    3,212.77x = 9,603,809.43
  5. Step 5: Solve for x
    x = 9,603,809.43/3,212.77
  6. Step 6: Final answer
    x = 2,989.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.