Home / 3,611.20-5,416.98-1,013.80

Finding the Fourth Proportional to 3,611.20, 5,416.98 and 1,013.80

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Solution

The fourth proportional to 3,611.20, 5,416.98 and 1,013.80 is: 1,520.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,611.20 : 5,416.98 = 1,013.80 : x
  2. Step 2: Convert to fraction form
    3,611.20/5,416.98 = 1,013.80/x
  3. Step 3: Cross multiply
    3,611.20x = 5,416.98 × 1,013.80
  4. Step 4: Simplify right side
    3,611.20x = 5,491,734.32
  5. Step 5: Solve for x
    x = 5,491,734.32/3,611.20
  6. Step 6: Final answer
    x = 1,520.75

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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.