Home / 1,676.43-2,512.31-1,428.34

Finding the Fourth Proportional to 1,676.43, 2,512.31 and 1,428.34

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Solution

The fourth proportional to 1,676.43, 2,512.31 and 1,428.34 is: 2,140.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,676.43 : 2,512.31 = 1,428.34 : x
  2. Step 2: Convert to fraction form
    1,676.43/2,512.31 = 1,428.34/x
  3. Step 3: Cross multiply
    1,676.43x = 2,512.31 × 1,428.34
  4. Step 4: Simplify right side
    1,676.43x = 3,588,435.58
  5. Step 5: Solve for x
    x = 3,588,435.58/1,676.43
  6. Step 6: Final answer
    x = 2,140.52

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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.