Home / 1,992.08-2,748.87-1,520.28

Finding the Fourth Proportional to 1,992.08, 2,748.87 and 1,520.28

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Solution

The fourth proportional to 1,992.08, 2,748.87 and 1,520.28 is: 2,097.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992.08 : 2,748.87 = 1,520.28 : x
  2. Step 2: Convert to fraction form
    1,992.08/2,748.87 = 1,520.28/x
  3. Step 3: Cross multiply
    1,992.08x = 2,748.87 × 1,520.28
  4. Step 4: Simplify right side
    1,992.08x = 4,179,052.08
  5. Step 5: Solve for x
    x = 4,179,052.08/1,992.08
  6. Step 6: Final answer
    x = 2,097.83

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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.