Home / 3,738.69-5,611.50-1,891.11

Finding the Fourth Proportional to 3,738.69, 5,611.50 and 1,891.11

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Solution

The fourth proportional to 3,738.69, 5,611.50 and 1,891.11 is: 2,838.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,738.69 : 5,611.50 = 1,891.11 : x
  2. Step 2: Convert to fraction form
    3,738.69/5,611.50 = 1,891.11/x
  3. Step 3: Cross multiply
    3,738.69x = 5,611.50 × 1,891.11
  4. Step 4: Simplify right side
    3,738.69x = 10,611,935.71
  5. Step 5: Solve for x
    x = 10,611,935.71/3,738.69
  6. Step 6: Final answer
    x = 2,838.41

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1.5x scale

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.