Home / 3,147.40-4,335.91-2,201.43

Finding the Fourth Proportional to 3,147.40, 4,335.91 and 2,201.43

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Solution

The fourth proportional to 3,147.40, 4,335.91 and 2,201.43 is: 3,032.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,147.40 : 4,335.91 = 2,201.43 : x
  2. Step 2: Convert to fraction form
    3,147.40/4,335.91 = 2,201.43/x
  3. Step 3: Cross multiply
    3,147.40x = 4,335.91 × 2,201.43
  4. Step 4: Simplify right side
    3,147.40x = 9,545,202.35
  5. Step 5: Solve for x
    x = 9,545,202.35/3,147.40
  6. Step 6: Final answer
    x = 3,032.73

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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.