Home / 3,072.36-4,208.04-2,892.78

Finding the Fourth Proportional to 3,072.36, 4,208.04 and 2,892.78

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Solution

The fourth proportional to 3,072.36, 4,208.04 and 2,892.78 is: 3,962.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,072.36 : 4,208.04 = 2,892.78 : x
  2. Step 2: Convert to fraction form
    3,072.36/4,208.04 = 2,892.78/x
  3. Step 3: Cross multiply
    3,072.36x = 4,208.04 × 2,892.78
  4. Step 4: Simplify right side
    3,072.36x = 12,172,933.95
  5. Step 5: Solve for x
    x = 12,172,933.95/3,072.36
  6. Step 6: Final answer
    x = 3,962.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.