Home / 3,288.75-4,538.38-1,872.42

Finding the Fourth Proportional to 3,288.75, 4,538.38 and 1,872.42

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Solution

The fourth proportional to 3,288.75, 4,538.38 and 1,872.42 is: 2,583.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,288.75 : 4,538.38 = 1,872.42 : x
  2. Step 2: Convert to fraction form
    3,288.75/4,538.38 = 1,872.42/x
  3. Step 3: Cross multiply
    3,288.75x = 4,538.38 × 1,872.42
  4. Step 4: Simplify right side
    3,288.75x = 8,497,735.29
  5. Step 5: Solve for x
    x = 8,497,735.29/3,288.75
  6. Step 6: Final answer
    x = 2,583.88

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1.5x scale

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.