Home / 3,056.42-4,212.24-2,171.90

Finding the Fourth Proportional to 3,056.42, 4,212.24 and 2,171.90

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Solution

The fourth proportional to 3,056.42, 4,212.24 and 2,171.90 is: 2,993.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,056.42 : 4,212.24 = 2,171.90 : x
  2. Step 2: Convert to fraction form
    3,056.42/4,212.24 = 2,171.90/x
  3. Step 3: Cross multiply
    3,056.42x = 4,212.24 × 2,171.90
  4. Step 4: Simplify right side
    3,056.42x = 9,148,542.99
  5. Step 5: Solve for x
    x = 9,148,542.99/3,056.42
  6. Step 6: Final answer
    x = 2,993.23

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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.