Home / 2,281.27-3,148.44-1,286.86

Finding the Fourth Proportional to 2,281.27, 3,148.44 and 1,286.86

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Solution

The fourth proportional to 2,281.27, 3,148.44 and 1,286.86 is: 1,776.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,281.27 : 3,148.44 = 1,286.86 : x
  2. Step 2: Convert to fraction form
    2,281.27/3,148.44 = 1,286.86/x
  3. Step 3: Cross multiply
    2,281.27x = 3,148.44 × 1,286.86
  4. Step 4: Simplify right side
    2,281.27x = 4,051,601.50
  5. Step 5: Solve for x
    x = 4,051,601.50/2,281.27
  6. Step 6: Final answer
    x = 1,776.03

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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.