Home / 1,992.08-2,750.22-1,329.91

Finding the Fourth Proportional to 1,992.08, 2,750.22 and 1,329.91

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Solution

The fourth proportional to 1,992.08, 2,750.22 and 1,329.91 is: 1,836.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992.08 : 2,750.22 = 1,329.91 : x
  2. Step 2: Convert to fraction form
    1,992.08/2,750.22 = 1,329.91/x
  3. Step 3: Cross multiply
    1,992.08x = 2,750.22 × 1,329.91
  4. Step 4: Simplify right side
    1,992.08x = 3,657,538.20
  5. Step 5: Solve for x
    x = 3,657,538.20/1,992.08
  6. Step 6: Final answer
    x = 1,836.04

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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.