Home / 4,079.58-6,119.37-3,219.90

Finding the Fourth Proportional to 4,079.58, 6,119.37 and 3,219.90

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Solution

The fourth proportional to 4,079.58, 6,119.37 and 3,219.90 is: 4,829.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,079.58 : 6,119.37 = 3,219.90 : x
  2. Step 2: Convert to fraction form
    4,079.58/6,119.37 = 3,219.90/x
  3. Step 3: Cross multiply
    4,079.58x = 6,119.37 × 3,219.90
  4. Step 4: Simplify right side
    4,079.58x = 19,703,759.46
  5. Step 5: Solve for x
    x = 19,703,759.46/4,079.58
  6. Step 6: Final answer
    x = 4,829.85

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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.