Home / 4,128.18-6,190.83-1,818.42

Finding the Fourth Proportional to 4,128.18, 6,190.83 and 1,818.42

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Solution

The fourth proportional to 4,128.18, 6,190.83 and 1,818.42 is: 2,727.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128.18 : 6,190.83 = 1,818.42 : x
  2. Step 2: Convert to fraction form
    4,128.18/6,190.83 = 1,818.42/x
  3. Step 3: Cross multiply
    4,128.18x = 6,190.83 × 1,818.42
  4. Step 4: Simplify right side
    4,128.18x = 11,257,529.09
  5. Step 5: Solve for x
    x = 11,257,529.09/4,128.18
  6. Step 6: Final answer
    x = 2,727.00

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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.