Home / 3,205.47-4,805.79-2,162.55

Finding the Fourth Proportional to 3,205.47, 4,805.79 and 2,162.55

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Solution

The fourth proportional to 3,205.47, 4,805.79 and 2,162.55 is: 3,242.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,205.47 : 4,805.79 = 2,162.55 : x
  2. Step 2: Convert to fraction form
    3,205.47/4,805.79 = 2,162.55/x
  3. Step 3: Cross multiply
    3,205.47x = 4,805.79 × 2,162.55
  4. Step 4: Simplify right side
    3,205.47x = 10,392,761.16
  5. Step 5: Solve for x
    x = 10,392,761.16/3,205.47
  6. Step 6: Final answer
    x = 3,242.20

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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.