Home / 3,120.75-4,667.04-2,380.59

Finding the Fourth Proportional to 3,120.75, 4,667.04 and 2,380.59

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Solution

The fourth proportional to 3,120.75, 4,667.04 and 2,380.59 is: 3,560.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120.75 : 4,667.04 = 2,380.59 : x
  2. Step 2: Convert to fraction form
    3,120.75/4,667.04 = 2,380.59/x
  3. Step 3: Cross multiply
    3,120.75x = 4,667.04 × 2,380.59
  4. Step 4: Simplify right side
    3,120.75x = 11,110,308.75
  5. Step 5: Solve for x
    x = 11,110,308.75/3,120.75
  6. Step 6: Final answer
    x = 3,560.14

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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.