Home / 4,126.05-5,687.31-3,228.21

Finding the Fourth Proportional to 4,126.05, 5,687.31 and 3,228.21

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Solution

The fourth proportional to 4,126.05, 5,687.31 and 3,228.21 is: 4,449.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,126.05 : 5,687.31 = 3,228.21 : x
  2. Step 2: Convert to fraction form
    4,126.05/5,687.31 = 3,228.21/x
  3. Step 3: Cross multiply
    4,126.05x = 5,687.31 × 3,228.21
  4. Step 4: Simplify right side
    4,126.05x = 18,359,831.02
  5. Step 5: Solve for x
    x = 18,359,831.02/4,126.05
  6. Step 6: Final answer
    x = 4,449.74

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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.