Home / 3,200.98-4,415.56-2,006.78

Finding the Fourth Proportional to 3,200.98, 4,415.56 and 2,006.78

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Solution

The fourth proportional to 3,200.98, 4,415.56 and 2,006.78 is: 2,768.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,200.98 : 4,415.56 = 2,006.78 : x
  2. Step 2: Convert to fraction form
    3,200.98/4,415.56 = 2,006.78/x
  3. Step 3: Cross multiply
    3,200.98x = 4,415.56 × 2,006.78
  4. Step 4: Simplify right side
    3,200.98x = 8,861,057.50
  5. Step 5: Solve for x
    x = 8,861,057.50/3,200.98
  6. Step 6: Final answer
    x = 2,768.23

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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.