Home / 6,528.45-9,786.69-2,143.65

Finding the Fourth Proportional to 6,528.45, 9,786.69 and 2,143.65

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Solution

The fourth proportional to 6,528.45, 9,786.69 and 2,143.65 is: 3,213.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,528.45 : 9,786.69 = 2,143.65 : x
  2. Step 2: Convert to fraction form
    6,528.45/9,786.69 = 2,143.65/x
  3. Step 3: Cross multiply
    6,528.45x = 9,786.69 × 2,143.65
  4. Step 4: Simplify right side
    6,528.45x = 20,979,238.02
  5. Step 5: Solve for x
    x = 20,979,238.02/6,528.45
  6. Step 6: Final answer
    x = 3,213.51

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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.