Home / 4,102.92-6,149.96-1,990.07

Finding the Fourth Proportional to 4,102.92, 6,149.96 and 1,990.07

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Solution

The fourth proportional to 4,102.92, 6,149.96 and 1,990.07 is: 2,982.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,102.92 : 6,149.96 = 1,990.07 : x
  2. Step 2: Convert to fraction form
    4,102.92/6,149.96 = 1,990.07/x
  3. Step 3: Cross multiply
    4,102.92x = 6,149.96 × 1,990.07
  4. Step 4: Simplify right side
    4,102.92x = 12,238,882.78
  5. Step 5: Solve for x
    x = 12,238,882.78/4,102.92
  6. Step 6: Final answer
    x = 2,982.97

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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.