Home / 2,163.28-3,240.55-2,051.20

Finding the Fourth Proportional to 2,163.28, 3,240.55 and 2,051.20

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Solution

The fourth proportional to 2,163.28, 3,240.55 and 2,051.20 is: 3,072.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,163.28 : 3,240.55 = 2,051.20 : x
  2. Step 2: Convert to fraction form
    2,163.28/3,240.55 = 2,051.20/x
  3. Step 3: Cross multiply
    2,163.28x = 3,240.55 × 2,051.20
  4. Step 4: Simplify right side
    2,163.28x = 6,647,005.09
  5. Step 5: Solve for x
    x = 6,647,005.09/2,163.28
  6. Step 6: Final answer
    x = 3,072.65

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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.