Home / 3,213.91-4,821.57-1,827.90

Finding the Fourth Proportional to 3,213.91, 4,821.57 and 1,827.90

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Solution

The fourth proportional to 3,213.91, 4,821.57 and 1,827.90 is: 2,742.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,213.91 : 4,821.57 = 1,827.90 : x
  2. Step 2: Convert to fraction form
    3,213.91/4,821.57 = 1,827.90/x
  3. Step 3: Cross multiply
    3,213.91x = 4,821.57 × 1,827.90
  4. Step 4: Simplify right side
    3,213.91x = 8,813,314.56
  5. Step 5: Solve for x
    x = 8,813,314.56/3,213.91
  6. Step 6: Final answer
    x = 2,742.24

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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.