Home / 4,160.40-5,745.96-2,831.76

Finding the Fourth Proportional to 4,160.40, 5,745.96 and 2,831.76

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Solution

The fourth proportional to 4,160.40, 5,745.96 and 2,831.76 is: 3,910.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,160.40 : 5,745.96 = 2,831.76 : x
  2. Step 2: Convert to fraction form
    4,160.40/5,745.96 = 2,831.76/x
  3. Step 3: Cross multiply
    4,160.40x = 5,745.96 × 2,831.76
  4. Step 4: Simplify right side
    4,160.40x = 16,271,179.69
  5. Step 5: Solve for x
    x = 16,271,179.69/4,160.40
  6. Step 6: Final answer
    x = 3,910.97

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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.