Home / 4,209.96-5,809.78-2,321.61

Finding the Fourth Proportional to 4,209.96, 5,809.78 and 2,321.61

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Solution

The fourth proportional to 4,209.96, 5,809.78 and 2,321.61 is: 3,203.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,209.96 : 5,809.78 = 2,321.61 : x
  2. Step 2: Convert to fraction form
    4,209.96/5,809.78 = 2,321.61/x
  3. Step 3: Cross multiply
    4,209.96x = 5,809.78 × 2,321.61
  4. Step 4: Simplify right side
    4,209.96x = 13,488,043.35
  5. Step 5: Solve for x
    x = 13,488,043.35/4,209.96
  6. Step 6: Final answer
    x = 3,203.84

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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.