Home / 3,431.49-5,158.17-2,141.16

Finding the Fourth Proportional to 3,431.49, 5,158.17 and 2,141.16

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Solution

The fourth proportional to 3,431.49, 5,158.17 and 2,141.16 is: 3,218.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.49 : 5,158.17 = 2,141.16 : x
  2. Step 2: Convert to fraction form
    3,431.49/5,158.17 = 2,141.16/x
  3. Step 3: Cross multiply
    3,431.49x = 5,158.17 × 2,141.16
  4. Step 4: Simplify right side
    3,431.49x = 11,044,467.28
  5. Step 5: Solve for x
    x = 11,044,467.28/3,431.49
  6. Step 6: Final answer
    x = 3,218.56

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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.