Home / 3,387.78-4,675.13-2,208.85

Finding the Fourth Proportional to 3,387.78, 4,675.13 and 2,208.85

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Solution

The fourth proportional to 3,387.78, 4,675.13 and 2,208.85 is: 3,048.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,387.78 : 4,675.13 = 2,208.85 : x
  2. Step 2: Convert to fraction form
    3,387.78/4,675.13 = 2,208.85/x
  3. Step 3: Cross multiply
    3,387.78x = 4,675.13 × 2,208.85
  4. Step 4: Simplify right side
    3,387.78x = 10,326,660.90
  5. Step 5: Solve for x
    x = 10,326,660.90/3,387.78
  6. Step 6: Final answer
    x = 3,048.21

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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.