Home / 3,400.20-4,692.30-1,984.88

Finding the Fourth Proportional to 3,400.20, 4,692.30 and 1,984.88

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Solution

The fourth proportional to 3,400.20, 4,692.30 and 1,984.88 is: 2,739.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,400.20 : 4,692.30 = 1,984.88 : x
  2. Step 2: Convert to fraction form
    3,400.20/4,692.30 = 1,984.88/x
  3. Step 3: Cross multiply
    3,400.20x = 4,692.30 × 1,984.88
  4. Step 4: Simplify right side
    3,400.20x = 9,313,652.42
  5. Step 5: Solve for x
    x = 9,313,652.42/3,400.20
  6. Step 6: Final answer
    x = 2,739.15

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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.