Home / 3,712.82-5,122.26-2,119.55

Finding the Fourth Proportional to 3,712.82, 5,122.26 and 2,119.55

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Solution

The fourth proportional to 3,712.82, 5,122.26 and 2,119.55 is: 2,924.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,712.82 : 5,122.26 = 2,119.55 : x
  2. Step 2: Convert to fraction form
    3,712.82/5,122.26 = 2,119.55/x
  3. Step 3: Cross multiply
    3,712.82x = 5,122.26 × 2,119.55
  4. Step 4: Simplify right side
    3,712.82x = 10,856,886.18
  5. Step 5: Solve for x
    x = 10,856,886.18/3,712.82
  6. Step 6: Final answer
    x = 2,924.16

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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.