Home / 1,939.05-2,675.95-1,099.71

Finding the Fourth Proportional to 1,939.05, 2,675.95 and 1,099.71

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Solution

The fourth proportional to 1,939.05, 2,675.95 and 1,099.71 is: 1,517.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.05 : 2,675.95 = 1,099.71 : x
  2. Step 2: Convert to fraction form
    1,939.05/2,675.95 = 1,099.71/x
  3. Step 3: Cross multiply
    1,939.05x = 2,675.95 × 1,099.71
  4. Step 4: Simplify right side
    1,939.05x = 2,942,766.23
  5. Step 5: Solve for x
    x = 2,942,766.23/1,939.05
  6. Step 6: Final answer
    x = 1,517.63

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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.