Home / 3,521.92-5,274.48-2,112.40

Finding the Fourth Proportional to 3,521.92, 5,274.48 and 2,112.40

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Solution

The fourth proportional to 3,521.92, 5,274.48 and 2,112.40 is: 3,163.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,521.92 : 5,274.48 = 2,112.40 : x
  2. Step 2: Convert to fraction form
    3,521.92/5,274.48 = 2,112.40/x
  3. Step 3: Cross multiply
    3,521.92x = 5,274.48 × 2,112.40
  4. Step 4: Simplify right side
    3,521.92x = 11,141,811.55
  5. Step 5: Solve for x
    x = 11,141,811.55/3,521.92
  6. Step 6: Final answer
    x = 3,163.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.