Home / 3,276.45-4,520.80-1,949.90

Finding the Fourth Proportional to 3,276.45, 4,520.80 and 1,949.90

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Solution

The fourth proportional to 3,276.45, 4,520.80 and 1,949.90 is: 2,690.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,276.45 : 4,520.80 = 1,949.90 : x
  2. Step 2: Convert to fraction form
    3,276.45/4,520.80 = 1,949.90/x
  3. Step 3: Cross multiply
    3,276.45x = 4,520.80 × 1,949.90
  4. Step 4: Simplify right side
    3,276.45x = 8,815,075.57
  5. Step 5: Solve for x
    x = 8,815,075.57/3,276.45
  6. Step 6: Final answer
    x = 2,690.43

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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.