Home / 2,117.26-2,919.81-1,619.92

Finding the Fourth Proportional to 2,117.26, 2,919.81 and 1,619.92

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Solution

The fourth proportional to 2,117.26, 2,919.81 and 1,619.92 is: 2,233.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,117.26 : 2,919.81 = 1,619.92 : x
  2. Step 2: Convert to fraction form
    2,117.26/2,919.81 = 1,619.92/x
  3. Step 3: Cross multiply
    2,117.26x = 2,919.81 × 1,619.92
  4. Step 4: Simplify right side
    2,117.26x = 4,729,858.62
  5. Step 5: Solve for x
    x = 4,729,858.62/2,117.26
  6. Step 6: Final answer
    x = 2,233.95

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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.