Home / 5,122.85-7,067.33-2,938.85

Finding the Fourth Proportional to 5,122.85, 7,067.33 and 2,938.85

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Solution

The fourth proportional to 5,122.85, 7,067.33 and 2,938.85 is: 4,054.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,122.85 : 7,067.33 = 2,938.85 : x
  2. Step 2: Convert to fraction form
    5,122.85/7,067.33 = 2,938.85/x
  3. Step 3: Cross multiply
    5,122.85x = 7,067.33 × 2,938.85
  4. Step 4: Simplify right side
    5,122.85x = 20,769,772.74
  5. Step 5: Solve for x
    x = 20,769,772.74/5,122.85
  6. Step 6: Final answer
    x = 4,054.34

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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.