Home / 3,432.49-5,147.78-1,676.54

Finding the Fourth Proportional to 3,432.49, 5,147.78 and 1,676.54

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Solution

The fourth proportional to 3,432.49, 5,147.78 and 1,676.54 is: 2,514.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,432.49 : 5,147.78 = 1,676.54 : x
  2. Step 2: Convert to fraction form
    3,432.49/5,147.78 = 1,676.54/x
  3. Step 3: Cross multiply
    3,432.49x = 5,147.78 × 1,676.54
  4. Step 4: Simplify right side
    3,432.49x = 8,630,459.08
  5. Step 5: Solve for x
    x = 8,630,459.08/3,432.49
  6. Step 6: Final answer
    x = 2,514.34

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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.