Home / 3,571.92-5,353.02-2,185.74

Finding the Fourth Proportional to 3,571.92, 5,353.02 and 2,185.74

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Solution

The fourth proportional to 3,571.92, 5,353.02 and 2,185.74 is: 3,275.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,571.92 : 5,353.02 = 2,185.74 : x
  2. Step 2: Convert to fraction form
    3,571.92/5,353.02 = 2,185.74/x
  3. Step 3: Cross multiply
    3,571.92x = 5,353.02 × 2,185.74
  4. Step 4: Simplify right side
    3,571.92x = 11,700,309.93
  5. Step 5: Solve for x
    x = 11,700,309.93/3,571.92
  6. Step 6: Final answer
    x = 3,275.64

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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.