Home / 5,067.20-6,992.60-2,971.28

Finding the Fourth Proportional to 5,067.20, 6,992.60 and 2,971.28

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Solution

The fourth proportional to 5,067.20, 6,992.60 and 2,971.28 is: 4,100.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,067.20 : 6,992.60 = 2,971.28 : x
  2. Step 2: Convert to fraction form
    5,067.20/6,992.60 = 2,971.28/x
  3. Step 3: Cross multiply
    5,067.20x = 6,992.60 × 2,971.28
  4. Step 4: Simplify right side
    5,067.20x = 20,776,972.53
  5. Step 5: Solve for x
    x = 20,776,972.53/5,067.20
  6. Step 6: Final answer
    x = 4,100.29

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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.