Home / 3,784.44-5,679.42-2,142.36

Finding the Fourth Proportional to 3,784.44, 5,679.42 and 2,142.36

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Solution

The fourth proportional to 3,784.44, 5,679.42 and 2,142.36 is: 3,215.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,784.44 : 5,679.42 = 2,142.36 : x
  2. Step 2: Convert to fraction form
    3,784.44/5,679.42 = 2,142.36/x
  3. Step 3: Cross multiply
    3,784.44x = 5,679.42 × 2,142.36
  4. Step 4: Simplify right side
    3,784.44x = 12,167,362.23
  5. Step 5: Solve for x
    x = 12,167,362.23/3,784.44
  6. Step 6: Final answer
    x = 3,215.10

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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.