Home / 3,818.32-5,727.39-1,869.16

Finding the Fourth Proportional to 3,818.32, 5,727.39 and 1,869.16

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Solution

The fourth proportional to 3,818.32, 5,727.39 and 1,869.16 is: 2,803.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,818.32 : 5,727.39 = 1,869.16 : x
  2. Step 2: Convert to fraction form
    3,818.32/5,727.39 = 1,869.16/x
  3. Step 3: Cross multiply
    3,818.32x = 5,727.39 × 1,869.16
  4. Step 4: Simplify right side
    3,818.32x = 10,705,379.66
  5. Step 5: Solve for x
    x = 10,705,379.66/3,818.32
  6. Step 6: Final answer
    x = 2,803.69

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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.