Home / 6,922.48-10,385.36-1,992

Finding the Fourth Proportional to 6,922.48, 10,385.36 and 1,992

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Solution

The fourth proportional to 6,922.48, 10,385.36 and 1,992 is: 2,988.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,922.48 : 10,385.36 = 1,992 : x
  2. Step 2: Convert to fraction form
    6,922.48/10,385.36 = 1,992/x
  3. Step 3: Cross multiply
    6,922.48x = 10,385.36 × 1,992
  4. Step 4: Simplify right side
    6,922.48x = 20,687,637.12
  5. Step 5: Solve for x
    x = 20,687,637.12/6,922.48
  6. Step 6: Final answer
    x = 2,988.47

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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.