Home / 1,992.09-2,986.50-1,731.48

Finding the Fourth Proportional to 1,992.09, 2,986.50 and 1,731.48

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Solution

The fourth proportional to 1,992.09, 2,986.50 and 1,731.48 is: 2,595.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992.09 : 2,986.50 = 1,731.48 : x
  2. Step 2: Convert to fraction form
    1,992.09/2,986.50 = 1,731.48/x
  3. Step 3: Cross multiply
    1,992.09x = 2,986.50 × 1,731.48
  4. Step 4: Simplify right side
    1,992.09x = 5,171,065.02
  5. Step 5: Solve for x
    x = 5,171,065.02/1,992.09
  6. Step 6: Final answer
    x = 2,595.80

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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.