Home / 1,992.29-2,988.45-1,262.37

Finding the Fourth Proportional to 1,992.29, 2,988.45 and 1,262.37

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Solution

The fourth proportional to 1,992.29, 2,988.45 and 1,262.37 is: 1,893.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992.29 : 2,988.45 = 1,262.37 : x
  2. Step 2: Convert to fraction form
    1,992.29/2,988.45 = 1,262.37/x
  3. Step 3: Cross multiply
    1,992.29x = 2,988.45 × 1,262.37
  4. Step 4: Simplify right side
    1,992.29x = 3,772,529.63
  5. Step 5: Solve for x
    x = 3,772,529.63/1,992.29
  6. Step 6: Final answer
    x = 1,893.57

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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.