Home / 2,850.05-3,934.50-1,789.35

Finding the Fourth Proportional to 2,850.05, 3,934.50 and 1,789.35

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Solution

The fourth proportional to 2,850.05, 3,934.50 and 1,789.35 is: 2,470.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,850.05 : 3,934.50 = 1,789.35 : x
  2. Step 2: Convert to fraction form
    2,850.05/3,934.50 = 1,789.35/x
  3. Step 3: Cross multiply
    2,850.05x = 3,934.50 × 1,789.35
  4. Step 4: Simplify right side
    2,850.05x = 7,040,208.81
  5. Step 5: Solve for x
    x = 7,040,208.81/2,850.05
  6. Step 6: Final answer
    x = 2,470.21

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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.