Home / 3,208.80-4,821.30-2,852.40

Finding the Fourth Proportional to 3,208.80, 4,821.30 and 2,852.40

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Solution

The fourth proportional to 3,208.80, 4,821.30 and 2,852.40 is: 4,285.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,208.80 : 4,821.30 = 2,852.40 : x
  2. Step 2: Convert to fraction form
    3,208.80/4,821.30 = 2,852.40/x
  3. Step 3: Cross multiply
    3,208.80x = 4,821.30 × 2,852.40
  4. Step 4: Simplify right side
    3,208.80x = 13,752,276.12
  5. Step 5: Solve for x
    x = 13,752,276.12/3,208.80
  6. Step 6: Final answer
    x = 4,285.80

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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.