Home / 2,855.24-3,936.66-2,330.12

Finding the Fourth Proportional to 2,855.24, 3,936.66 and 2,330.12

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Solution

The fourth proportional to 2,855.24, 3,936.66 and 2,330.12 is: 3,212.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,855.24 : 3,936.66 = 2,330.12 : x
  2. Step 2: Convert to fraction form
    2,855.24/3,936.66 = 2,330.12/x
  3. Step 3: Cross multiply
    2,855.24x = 3,936.66 × 2,330.12
  4. Step 4: Simplify right side
    2,855.24x = 9,172,890.20
  5. Step 5: Solve for x
    x = 9,172,890.20/2,855.24
  6. Step 6: Final answer
    x = 3,212.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.