Home / 3,399.63-4,692.66-2,142.80

Finding the Fourth Proportional to 3,399.63, 4,692.66 and 2,142.80

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Solution

The fourth proportional to 3,399.63, 4,692.66 and 2,142.80 is: 2,957.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,399.63 : 4,692.66 = 2,142.80 : x
  2. Step 2: Convert to fraction form
    3,399.63/4,692.66 = 2,142.80/x
  3. Step 3: Cross multiply
    3,399.63x = 4,692.66 × 2,142.80
  4. Step 4: Simplify right side
    3,399.63x = 10,055,443.58
  5. Step 5: Solve for x
    x = 10,055,443.58/3,399.63
  6. Step 6: Final answer
    x = 2,957.81

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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.