Home / 3,428.14-5,142.21-1,676.11

Finding the Fourth Proportional to 3,428.14, 5,142.21 and 1,676.11

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Solution

The fourth proportional to 3,428.14, 5,142.21 and 1,676.11 is: 2,514.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.14 : 5,142.21 = 1,676.11 : x
  2. Step 2: Convert to fraction form
    3,428.14/5,142.21 = 1,676.11/x
  3. Step 3: Cross multiply
    3,428.14x = 5,142.21 × 1,676.11
  4. Step 4: Simplify right side
    3,428.14x = 8,618,909.60
  5. Step 5: Solve for x
    x = 8,618,909.60/3,428.14
  6. Step 6: Final answer
    x = 2,514.17

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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.