Home / 3,952.68-5,454.96-2,380.80

Finding the Fourth Proportional to 3,952.68, 5,454.96 and 2,380.80

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Solution

The fourth proportional to 3,952.68, 5,454.96 and 2,380.80 is: 3,285.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,952.68 : 5,454.96 = 2,380.80 : x
  2. Step 2: Convert to fraction form
    3,952.68/5,454.96 = 2,380.80/x
  3. Step 3: Cross multiply
    3,952.68x = 5,454.96 × 2,380.80
  4. Step 4: Simplify right side
    3,952.68x = 12,987,168.77
  5. Step 5: Solve for x
    x = 12,987,168.77/3,952.68
  6. Step 6: Final answer
    x = 3,285.66

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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.