Home / 4,081.28-6,120.92-1,887.92

Finding the Fourth Proportional to 4,081.28, 6,120.92 and 1,887.92

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Solution

The fourth proportional to 4,081.28, 6,120.92 and 1,887.92 is: 2,831.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,081.28 : 6,120.92 = 1,887.92 : x
  2. Step 2: Convert to fraction form
    4,081.28/6,120.92 = 1,887.92/x
  3. Step 3: Cross multiply
    4,081.28x = 6,120.92 × 1,887.92
  4. Step 4: Simplify right side
    4,081.28x = 11,555,807.29
  5. Step 5: Solve for x
    x = 11,555,807.29/4,081.28
  6. Step 6: Final answer
    x = 2,831.42

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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.