Home / 3,205.20-4,799.70-2,557.20

Finding the Fourth Proportional to 3,205.20, 4,799.70 and 2,557.20

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Solution

The fourth proportional to 3,205.20, 4,799.70 and 2,557.20 is: 3,829.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,205.20 : 4,799.70 = 2,557.20 : x
  2. Step 2: Convert to fraction form
    3,205.20/4,799.70 = 2,557.20/x
  3. Step 3: Cross multiply
    3,205.20x = 4,799.70 × 2,557.20
  4. Step 4: Simplify right side
    3,205.20x = 12,273,792.84
  5. Step 5: Solve for x
    x = 12,273,792.84/3,205.20
  6. Step 6: Final answer
    x = 3,829.34

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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.