Home / 3,882.42-5,357.34-2,310.21

Finding the Fourth Proportional to 3,882.42, 5,357.34 and 2,310.21

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Solution

The fourth proportional to 3,882.42, 5,357.34 and 2,310.21 is: 3,187.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,882.42 : 5,357.34 = 2,310.21 : x
  2. Step 2: Convert to fraction form
    3,882.42/5,357.34 = 2,310.21/x
  3. Step 3: Cross multiply
    3,882.42x = 5,357.34 × 2,310.21
  4. Step 4: Simplify right side
    3,882.42x = 12,376,580.44
  5. Step 5: Solve for x
    x = 12,376,580.44/3,882.42
  6. Step 6: Final answer
    x = 3,187.85

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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.