Home / 3,818.44-5,727.57-1,221.40

Finding the Fourth Proportional to 3,818.44, 5,727.57 and 1,221.40

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Solution

The fourth proportional to 3,818.44, 5,727.57 and 1,221.40 is: 1,832.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,818.44 : 5,727.57 = 1,221.40 : x
  2. Step 2: Convert to fraction form
    3,818.44/5,727.57 = 1,221.40/x
  3. Step 3: Cross multiply
    3,818.44x = 5,727.57 × 1,221.40
  4. Step 4: Simplify right side
    3,818.44x = 6,995,654.00
  5. Step 5: Solve for x
    x = 6,995,654.00/3,818.44
  6. Step 6: Final answer
    x = 1,832.07

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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.