Home / 3,874.91-5,345.62-2,382.28

Finding the Fourth Proportional to 3,874.91, 5,345.62 and 2,382.28

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Solution

The fourth proportional to 3,874.91, 5,345.62 and 2,382.28 is: 3,286.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,874.91 : 5,345.62 = 2,382.28 : x
  2. Step 2: Convert to fraction form
    3,874.91/5,345.62 = 2,382.28/x
  3. Step 3: Cross multiply
    3,874.91x = 5,345.62 × 2,382.28
  4. Step 4: Simplify right side
    3,874.91x = 12,734,744.29
  5. Step 5: Solve for x
    x = 12,734,744.29/3,874.91
  6. Step 6: Final answer
    x = 3,286.47

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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.