Home / 3,045.33-4,202.91-2,857.68

Finding the Fourth Proportional to 3,045.33, 4,202.91 and 2,857.68

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Solution

The fourth proportional to 3,045.33, 4,202.91 and 2,857.68 is: 3,943.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,045.33 : 4,202.91 = 2,857.68 : x
  2. Step 2: Convert to fraction form
    3,045.33/4,202.91 = 2,857.68/x
  3. Step 3: Cross multiply
    3,045.33x = 4,202.91 × 2,857.68
  4. Step 4: Simplify right side
    3,045.33x = 12,010,571.85
  5. Step 5: Solve for x
    x = 12,010,571.85/3,045.33
  6. Step 6: Final answer
    x = 3,943.93

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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.