Home / 3,147.22-4,342.99-1,749.88

Finding the Fourth Proportional to 3,147.22, 4,342.99 and 1,749.88

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Solution

The fourth proportional to 3,147.22, 4,342.99 and 1,749.88 is: 2,414.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,147.22 : 4,342.99 = 1,749.88 : x
  2. Step 2: Convert to fraction form
    3,147.22/4,342.99 = 1,749.88/x
  3. Step 3: Cross multiply
    3,147.22x = 4,342.99 × 1,749.88
  4. Step 4: Simplify right side
    3,147.22x = 7,599,680.88
  5. Step 5: Solve for x
    x = 7,599,680.88/3,147.22
  6. Step 6: Final answer
    x = 2,414.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.