Home / 3,128.85-4,321.42-2,464.85

Finding the Fourth Proportional to 3,128.85, 4,321.42 and 2,464.85

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Solution

The fourth proportional to 3,128.85, 4,321.42 and 2,464.85 is: 3,404.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.85 : 4,321.42 = 2,464.85 : x
  2. Step 2: Convert to fraction form
    3,128.85/4,321.42 = 2,464.85/x
  3. Step 3: Cross multiply
    3,128.85x = 4,321.42 × 2,464.85
  4. Step 4: Simplify right side
    3,128.85x = 10,651,656.73
  5. Step 5: Solve for x
    x = 10,651,656.73/3,128.85
  6. Step 6: Final answer
    x = 3,404.34

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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.