Home / 3,818.36-5,727.33-1,221.10

Finding the Fourth Proportional to 3,818.36, 5,727.33 and 1,221.10

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Solution

The fourth proportional to 3,818.36, 5,727.33 and 1,221.10 is: 1,831.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,818.36 : 5,727.33 = 1,221.10 : x
  2. Step 2: Convert to fraction form
    3,818.36/5,727.33 = 1,221.10/x
  3. Step 3: Cross multiply
    3,818.36x = 5,727.33 × 1,221.10
  4. Step 4: Simplify right side
    3,818.36x = 6,993,628.34
  5. Step 5: Solve for x
    x = 6,993,628.34/3,818.36
  6. Step 6: Final answer
    x = 1,831.58

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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.