Home / 2,185.92-3,277.26-1,320.03

Finding the Fourth Proportional to 2,185.92, 3,277.26 and 1,320.03

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Solution

The fourth proportional to 2,185.92, 3,277.26 and 1,320.03 is: 1,979.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,185.92 : 3,277.26 = 1,320.03 : x
  2. Step 2: Convert to fraction form
    2,185.92/3,277.26 = 1,320.03/x
  3. Step 3: Cross multiply
    2,185.92x = 3,277.26 × 1,320.03
  4. Step 4: Simplify right side
    2,185.92x = 4,326,081.52
  5. Step 5: Solve for x
    x = 4,326,081.52/2,185.92
  6. Step 6: Final answer
    x = 1,979.07

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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.