Home / 4,608.20-6,909.60-3,149.12

Finding the Fourth Proportional to 4,608.20, 6,909.60 and 3,149.12

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Solution

The fourth proportional to 4,608.20, 6,909.60 and 3,149.12 is: 4,721.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,608.20 : 6,909.60 = 3,149.12 : x
  2. Step 2: Convert to fraction form
    4,608.20/6,909.60 = 3,149.12/x
  3. Step 3: Cross multiply
    4,608.20x = 6,909.60 × 3,149.12
  4. Step 4: Simplify right side
    4,608.20x = 21,759,159.55
  5. Step 5: Solve for x
    x = 21,759,159.55/4,608.20
  6. Step 6: Final answer
    x = 4,721.83

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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.