Home / 3,209.60-4,812.34-1,336.79

Finding the Fourth Proportional to 3,209.60, 4,812.34 and 1,336.79

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Solution

The fourth proportional to 3,209.60, 4,812.34 and 1,336.79 is: 2,004.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,209.60 : 4,812.34 = 1,336.79 : x
  2. Step 2: Convert to fraction form
    3,209.60/4,812.34 = 1,336.79/x
  3. Step 3: Cross multiply
    3,209.60x = 4,812.34 × 1,336.79
  4. Step 4: Simplify right side
    3,209.60x = 6,433,060.58
  5. Step 5: Solve for x
    x = 6,433,060.58/3,209.60
  6. Step 6: Final answer
    x = 2,004.32

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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.