Home / 3,611.20-5,416.84-2,955.12

Finding the Fourth Proportional to 3,611.20, 5,416.84 and 2,955.12

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Solution

The fourth proportional to 3,611.20, 5,416.84 and 2,955.12 is: 4,432.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,611.20 : 5,416.84 = 2,955.12 : x
  2. Step 2: Convert to fraction form
    3,611.20/5,416.84 = 2,955.12/x
  3. Step 3: Cross multiply
    3,611.20x = 5,416.84 × 2,955.12
  4. Step 4: Simplify right side
    3,611.20x = 16,007,412.22
  5. Step 5: Solve for x
    x = 16,007,412.22/3,611.20
  6. Step 6: Final answer
    x = 4,432.71

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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.