Home / 3,528.12-4,868.79-1,956.21

Finding the Fourth Proportional to 3,528.12, 4,868.79 and 1,956.21

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Solution

The fourth proportional to 3,528.12, 4,868.79 and 1,956.21 is: 2,699.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,528.12 : 4,868.79 = 1,956.21 : x
  2. Step 2: Convert to fraction form
    3,528.12/4,868.79 = 1,956.21/x
  3. Step 3: Cross multiply
    3,528.12x = 4,868.79 × 1,956.21
  4. Step 4: Simplify right side
    3,528.12x = 9,524,375.69
  5. Step 5: Solve for x
    x = 9,524,375.69/3,528.12
  6. Step 6: Final answer
    x = 2,699.56

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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.