Home / 4,131.60-6,198.36-1,939.14

Finding the Fourth Proportional to 4,131.60, 6,198.36 and 1,939.14

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Solution

The fourth proportional to 4,131.60, 6,198.36 and 1,939.14 is: 2,909.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,131.60 : 6,198.36 = 1,939.14 : x
  2. Step 2: Convert to fraction form
    4,131.60/6,198.36 = 1,939.14/x
  3. Step 3: Cross multiply
    4,131.60x = 6,198.36 × 1,939.14
  4. Step 4: Simplify right side
    4,131.60x = 12,019,487.81
  5. Step 5: Solve for x
    x = 12,019,487.81/4,131.60
  6. Step 6: Final answer
    x = 2,909.16

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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.