Home / 3,205.80-4,808.70-1,563.39

Finding the Fourth Proportional to 3,205.80, 4,808.70 and 1,563.39

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Solution

The fourth proportional to 3,205.80, 4,808.70 and 1,563.39 is: 2,345.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,205.80 : 4,808.70 = 1,563.39 : x
  2. Step 2: Convert to fraction form
    3,205.80/4,808.70 = 1,563.39/x
  3. Step 3: Cross multiply
    3,205.80x = 4,808.70 × 1,563.39
  4. Step 4: Simplify right side
    3,205.80x = 7,517,873.49
  5. Step 5: Solve for x
    x = 7,517,873.49/3,205.80
  6. Step 6: Final answer
    x = 2,345.09

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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.