Home / 4,081.71-6,123.60-1,998.90

Finding the Fourth Proportional to 4,081.71, 6,123.60 and 1,998.90

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Solution

The fourth proportional to 4,081.71, 6,123.60 and 1,998.90 is: 2,998.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,081.71 : 6,123.60 = 1,998.90 : x
  2. Step 2: Convert to fraction form
    4,081.71/6,123.60 = 1,998.90/x
  3. Step 3: Cross multiply
    4,081.71x = 6,123.60 × 1,998.90
  4. Step 4: Simplify right side
    4,081.71x = 12,240,464.04
  5. Step 5: Solve for x
    x = 12,240,464.04/4,081.71
  6. Step 6: Final answer
    x = 2,998.86

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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.