Home / 2,379.65-3,286.64-1,818.86

Finding the Fourth Proportional to 2,379.65, 3,286.64 and 1,818.86

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Solution

The fourth proportional to 2,379.65, 3,286.64 and 1,818.86 is: 2,512.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,379.65 : 3,286.64 = 1,818.86 : x
  2. Step 2: Convert to fraction form
    2,379.65/3,286.64 = 1,818.86/x
  3. Step 3: Cross multiply
    2,379.65x = 3,286.64 × 1,818.86
  4. Step 4: Simplify right side
    2,379.65x = 5,977,926.14
  5. Step 5: Solve for x
    x = 5,977,926.14/2,379.65
  6. Step 6: Final answer
    x = 2,512.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.