Home / 1,992-2,968.20-1,773.90

Finding the Fourth Proportional to 1,992, 2,968.20 and 1,773.90

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Solution

The fourth proportional to 1,992, 2,968.20 and 1,773.90 is: 2,643.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992 : 2,968.20 = 1,773.90 : x
  2. Step 2: Convert to fraction form
    1,992/2,968.20 = 1,773.90/x
  3. Step 3: Cross multiply
    1,992x = 2,968.20 × 1,773.90
  4. Step 4: Simplify right side
    1,992x = 5,265,289.98
  5. Step 5: Solve for x
    x = 5,265,289.98/1,992
  6. Step 6: Final answer
    x = 2,643.22

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.