Home / 3,179.46-4,387.18-1,834.54

Finding the Fourth Proportional to 3,179.46, 4,387.18 and 1,834.54

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Solution

The fourth proportional to 3,179.46, 4,387.18 and 1,834.54 is: 2,531.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179.46 : 4,387.18 = 1,834.54 : x
  2. Step 2: Convert to fraction form
    3,179.46/4,387.18 = 1,834.54/x
  3. Step 3: Cross multiply
    3,179.46x = 4,387.18 × 1,834.54
  4. Step 4: Simplify right side
    3,179.46x = 8,048,435.26
  5. Step 5: Solve for x
    x = 8,048,435.26/3,179.46
  6. Step 6: Final answer
    x = 2,531.39

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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.