Home / 3,778.04-5,212.50-2,205.80

Finding the Fourth Proportional to 3,778.04, 5,212.50 and 2,205.80

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Solution

The fourth proportional to 3,778.04, 5,212.50 and 2,205.80 is: 3,043.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,778.04 : 5,212.50 = 2,205.80 : x
  2. Step 2: Convert to fraction form
    3,778.04/5,212.50 = 2,205.80/x
  3. Step 3: Cross multiply
    3,778.04x = 5,212.50 × 2,205.80
  4. Step 4: Simplify right side
    3,778.04x = 11,497,732.50
  5. Step 5: Solve for x
    x = 11,497,732.50/3,778.04
  6. Step 6: Final answer
    x = 3,043.31

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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.