Home / 3,727.71-5,144.87-2,156.71

Finding the Fourth Proportional to 3,727.71, 5,144.87 and 2,156.71

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Solution

The fourth proportional to 3,727.71, 5,144.87 and 2,156.71 is: 2,976.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,727.71 : 5,144.87 = 2,156.71 : x
  2. Step 2: Convert to fraction form
    3,727.71/5,144.87 = 2,156.71/x
  3. Step 3: Cross multiply
    3,727.71x = 5,144.87 × 2,156.71
  4. Step 4: Simplify right side
    3,727.71x = 11,095,992.58
  5. Step 5: Solve for x
    x = 11,095,992.58/3,727.71
  6. Step 6: Final answer
    x = 2,976.62

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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.