Home / 5,122.48-7,067.27-3,106.51

Finding the Fourth Proportional to 5,122.48, 7,067.27 and 3,106.51

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Solution

The fourth proportional to 5,122.48, 7,067.27 and 3,106.51 is: 4,285.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,122.48 : 7,067.27 = 3,106.51 : x
  2. Step 2: Convert to fraction form
    5,122.48/7,067.27 = 3,106.51/x
  3. Step 3: Cross multiply
    5,122.48x = 7,067.27 × 3,106.51
  4. Step 4: Simplify right side
    5,122.48x = 21,954,494.06
  5. Step 5: Solve for x
    x = 21,954,494.06/5,122.48
  6. Step 6: Final answer
    x = 4,285.92

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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.