Home / 2,261.40-3,400.20-2,212.80

Finding the Fourth Proportional to 2,261.40, 3,400.20 and 2,212.80

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Solution

The fourth proportional to 2,261.40, 3,400.20 and 2,212.80 is: 3,327.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,261.40 : 3,400.20 = 2,212.80 : x
  2. Step 2: Convert to fraction form
    2,261.40/3,400.20 = 2,212.80/x
  3. Step 3: Cross multiply
    2,261.40x = 3,400.20 × 2,212.80
  4. Step 4: Simplify right side
    2,261.40x = 7,523,962.56
  5. Step 5: Solve for x
    x = 7,523,962.56/2,261.40
  6. Step 6: Final answer
    x = 3,327.13

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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.