Home / 3,431.27-5,142.99-2,261.11

Finding the Fourth Proportional to 3,431.27, 5,142.99 and 2,261.11

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Solution

The fourth proportional to 3,431.27, 5,142.99 and 2,261.11 is: 3,389.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.27 : 5,142.99 = 2,261.11 : x
  2. Step 2: Convert to fraction form
    3,431.27/5,142.99 = 2,261.11/x
  3. Step 3: Cross multiply
    3,431.27x = 5,142.99 × 2,261.11
  4. Step 4: Simplify right side
    3,431.27x = 11,628,866.12
  5. Step 5: Solve for x
    x = 11,628,866.12/3,431.27
  6. Step 6: Final answer
    x = 3,389.09

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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.