Home / 3,141.72-4,709.88-2,101.68

Finding the Fourth Proportional to 3,141.72, 4,709.88 and 2,101.68

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Solution

The fourth proportional to 3,141.72, 4,709.88 and 2,101.68 is: 3,150.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,141.72 : 4,709.88 = 2,101.68 : x
  2. Step 2: Convert to fraction form
    3,141.72/4,709.88 = 2,101.68/x
  3. Step 3: Cross multiply
    3,141.72x = 4,709.88 × 2,101.68
  4. Step 4: Simplify right side
    3,141.72x = 9,898,660.60
  5. Step 5: Solve for x
    x = 9,898,660.60/3,141.72
  6. Step 6: Final answer
    x = 3,150.71

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1.5x scale

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.