Home / 2,942.40-4,057.62-2,382.48

Finding the Fourth Proportional to 2,942.40, 4,057.62 and 2,382.48

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Solution

The fourth proportional to 2,942.40, 4,057.62 and 2,382.48 is: 3,285.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,942.40 : 4,057.62 = 2,382.48 : x
  2. Step 2: Convert to fraction form
    2,942.40/4,057.62 = 2,382.48/x
  3. Step 3: Cross multiply
    2,942.40x = 4,057.62 × 2,382.48
  4. Step 4: Simplify right side
    2,942.40x = 9,667,198.50
  5. Step 5: Solve for x
    x = 9,667,198.50/2,942.40
  6. Step 6: Final answer
    x = 3,285.48

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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.