Home / 2,138.04-3,211.92-1,676.52

Finding the Fourth Proportional to 2,138.04, 3,211.92 and 1,676.52

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Solution

The fourth proportional to 2,138.04, 3,211.92 and 1,676.52 is: 2,518.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138.04 : 3,211.92 = 1,676.52 : x
  2. Step 2: Convert to fraction form
    2,138.04/3,211.92 = 1,676.52/x
  3. Step 3: Cross multiply
    2,138.04x = 3,211.92 × 1,676.52
  4. Step 4: Simplify right side
    2,138.04x = 5,384,848.12
  5. Step 5: Solve for x
    x = 5,384,848.12/2,138.04
  6. Step 6: Final answer
    x = 2,518.59

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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.