Home / 4,201.88-6,302.82-1,428.56

Finding the Fourth Proportional to 4,201.88, 6,302.82 and 1,428.56

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Solution

The fourth proportional to 4,201.88, 6,302.82 and 1,428.56 is: 2,142.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,201.88 : 6,302.82 = 1,428.56 : x
  2. Step 2: Convert to fraction form
    4,201.88/6,302.82 = 1,428.56/x
  3. Step 3: Cross multiply
    4,201.88x = 6,302.82 × 1,428.56
  4. Step 4: Simplify right side
    4,201.88x = 9,003,956.54
  5. Step 5: Solve for x
    x = 9,003,956.54/4,201.88
  6. Step 6: Final answer
    x = 2,142.84

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1.5x scale

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.