Home / 7,979.88-11,969.37-2,433.12

Finding the Fourth Proportional to 7,979.88, 11,969.37 and 2,433.12

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Solution

The fourth proportional to 7,979.88, 11,969.37 and 2,433.12 is: 3,649.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,979.88 : 11,969.37 = 2,433.12 : x
  2. Step 2: Convert to fraction form
    7,979.88/11,969.37 = 2,433.12/x
  3. Step 3: Cross multiply
    7,979.88x = 11,969.37 × 2,433.12
  4. Step 4: Simplify right side
    7,979.88x = 29,122,913.53
  5. Step 5: Solve for x
    x = 29,122,913.53/7,979.88
  6. Step 6: Final answer
    x = 3,649.54

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1.5x scale

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.