Home / 3,179.35-4,771.31-2,355.15

Finding the Fourth Proportional to 3,179.35, 4,771.31 and 2,355.15

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Solution

The fourth proportional to 3,179.35, 4,771.31 and 2,355.15 is: 3,534.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179.35 : 4,771.31 = 2,355.15 : x
  2. Step 2: Convert to fraction form
    3,179.35/4,771.31 = 2,355.15/x
  3. Step 3: Cross multiply
    3,179.35x = 4,771.31 × 2,355.15
  4. Step 4: Simplify right side
    3,179.35x = 11,237,150.75
  5. Step 5: Solve for x
    x = 11,237,150.75/3,179.35
  6. Step 6: Final answer
    x = 3,534.42

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1.5x scale

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.