Home / 4,286.51-6,431.58-1,821.86

Finding the Fourth Proportional to 4,286.51, 6,431.58 and 1,821.86

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Solution

The fourth proportional to 4,286.51, 6,431.58 and 1,821.86 is: 2,733.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,286.51 : 6,431.58 = 1,821.86 : x
  2. Step 2: Convert to fraction form
    4,286.51/6,431.58 = 1,821.86/x
  3. Step 3: Cross multiply
    4,286.51x = 6,431.58 × 1,821.86
  4. Step 4: Simplify right side
    4,286.51x = 11,717,438.34
  5. Step 5: Solve for x
    x = 11,717,438.34/4,286.51
  6. Step 6: Final answer
    x = 2,733.56

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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.