Home / 3,285.75-4,534.35-2,106.82

Finding the Fourth Proportional to 3,285.75, 4,534.35 and 2,106.82

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Solution

The fourth proportional to 3,285.75, 4,534.35 and 2,106.82 is: 2,907.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,285.75 : 4,534.35 = 2,106.82 : x
  2. Step 2: Convert to fraction form
    3,285.75/4,534.35 = 2,106.82/x
  3. Step 3: Cross multiply
    3,285.75x = 4,534.35 × 2,106.82
  4. Step 4: Simplify right side
    3,285.75x = 9,553,057.03
  5. Step 5: Solve for x
    x = 9,553,057.03/3,285.75
  6. Step 6: Final answer
    x = 2,907.42

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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.