Home / 4,142.40-6,201.28-2,738.40

Finding the Fourth Proportional to 4,142.40, 6,201.28 and 2,738.40

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Solution

The fourth proportional to 4,142.40, 6,201.28 and 2,738.40 is: 4,099.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,142.40 : 6,201.28 = 2,738.40 : x
  2. Step 2: Convert to fraction form
    4,142.40/6,201.28 = 2,738.40/x
  3. Step 3: Cross multiply
    4,142.40x = 6,201.28 × 2,738.40
  4. Step 4: Simplify right side
    4,142.40x = 16,981,585.15
  5. Step 5: Solve for x
    x = 16,981,585.15/4,142.40
  6. Step 6: Final answer
    x = 4,099.46

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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.