Home / 2,322.30-3,198.78-1,901.10

Finding the Fourth Proportional to 2,322.30, 3,198.78 and 1,901.10

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Solution

The fourth proportional to 2,322.30, 3,198.78 and 1,901.10 is: 2,618.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,322.30 : 3,198.78 = 1,901.10 : x
  2. Step 2: Convert to fraction form
    2,322.30/3,198.78 = 1,901.10/x
  3. Step 3: Cross multiply
    2,322.30x = 3,198.78 × 1,901.10
  4. Step 4: Simplify right side
    2,322.30x = 6,081,200.66
  5. Step 5: Solve for x
    x = 6,081,200.66/2,322.30
  6. Step 6: Final answer
    x = 2,618.61

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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.