Home / 4,286.88-6,428.16-1,820.34

Finding the Fourth Proportional to 4,286.88, 6,428.16 and 1,820.34

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Solution

The fourth proportional to 4,286.88, 6,428.16 and 1,820.34 is: 2,729.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,286.88 : 6,428.16 = 1,820.34 : x
  2. Step 2: Convert to fraction form
    4,286.88/6,428.16 = 1,820.34/x
  3. Step 3: Cross multiply
    4,286.88x = 6,428.16 × 1,820.34
  4. Step 4: Simplify right side
    4,286.88x = 11,701,436.77
  5. Step 5: Solve for x
    x = 11,701,436.77/4,286.88
  6. Step 6: Final answer
    x = 2,729.59

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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.