Home / 3,622.94-5,429.09-2,140.64

Finding the Fourth Proportional to 3,622.94, 5,429.09 and 2,140.64

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Solution

The fourth proportional to 3,622.94, 5,429.09 and 2,140.64 is: 3,207.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,622.94 : 5,429.09 = 2,140.64 : x
  2. Step 2: Convert to fraction form
    3,622.94/5,429.09 = 2,140.64/x
  3. Step 3: Cross multiply
    3,622.94x = 5,429.09 × 2,140.64
  4. Step 4: Simplify right side
    3,622.94x = 11,621,727.22
  5. Step 5: Solve for x
    x = 11,621,727.22/3,622.94
  6. Step 6: Final answer
    x = 3,207.82

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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.