Home / 4,128.18-6,190.02-1,661.73

Finding the Fourth Proportional to 4,128.18, 6,190.02 and 1,661.73

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Solution

The fourth proportional to 4,128.18, 6,190.02 and 1,661.73 is: 2,491.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128.18 : 6,190.02 = 1,661.73 : x
  2. Step 2: Convert to fraction form
    4,128.18/6,190.02 = 1,661.73/x
  3. Step 3: Cross multiply
    4,128.18x = 6,190.02 × 1,661.73
  4. Step 4: Simplify right side
    4,128.18x = 10,286,141.93
  5. Step 5: Solve for x
    x = 10,286,141.93/4,128.18
  6. Step 6: Final answer
    x = 2,491.69

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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.