Home / 3,621.92-5,422.95-2,385.45

Finding the Fourth Proportional to 3,621.92, 5,422.95 and 2,385.45

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Solution

The fourth proportional to 3,621.92, 5,422.95 and 2,385.45 is: 3,571.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.92 : 5,422.95 = 2,385.45 : x
  2. Step 2: Convert to fraction form
    3,621.92/5,422.95 = 2,385.45/x
  3. Step 3: Cross multiply
    3,621.92x = 5,422.95 × 2,385.45
  4. Step 4: Simplify right side
    3,621.92x = 12,936,176.08
  5. Step 5: Solve for x
    x = 12,936,176.08/3,621.92
  6. Step 6: Final answer
    x = 3,571.64

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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.