Home / 4,209.20-6,309.96-1,611.44

Finding the Fourth Proportional to 4,209.20, 6,309.96 and 1,611.44

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Solution

The fourth proportional to 4,209.20, 6,309.96 and 1,611.44 is: 2,415.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,209.20 : 6,309.96 = 1,611.44 : x
  2. Step 2: Convert to fraction form
    4,209.20/6,309.96 = 1,611.44/x
  3. Step 3: Cross multiply
    4,209.20x = 6,309.96 × 1,611.44
  4. Step 4: Simplify right side
    4,209.20x = 10,168,121.94
  5. Step 5: Solve for x
    x = 10,168,121.94/4,209.20
  6. Step 6: Final answer
    x = 2,415.69

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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.