Home / 3,181.43-4,770.23-1,426.11

Finding the Fourth Proportional to 3,181.43, 4,770.23 and 1,426.11

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Solution

The fourth proportional to 3,181.43, 4,770.23 and 1,426.11 is: 2,138.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181.43 : 4,770.23 = 1,426.11 : x
  2. Step 2: Convert to fraction form
    3,181.43/4,770.23 = 1,426.11/x
  3. Step 3: Cross multiply
    3,181.43x = 4,770.23 × 1,426.11
  4. Step 4: Simplify right side
    3,181.43x = 6,802,864.28
  5. Step 5: Solve for x
    x = 6,802,864.28/3,181.43
  6. Step 6: Final answer
    x = 2,138.30

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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.