Home / 7,990.49-11,987.08-2,442.54

Finding the Fourth Proportional to 7,990.49, 11,987.08 and 2,442.54

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Solution

The fourth proportional to 7,990.49, 11,987.08 and 2,442.54 is: 3,664.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,990.49 : 11,987.08 = 2,442.54 : x
  2. Step 2: Convert to fraction form
    7,990.49/11,987.08 = 2,442.54/x
  3. Step 3: Cross multiply
    7,990.49x = 11,987.08 × 2,442.54
  4. Step 4: Simplify right side
    7,990.49x = 29,278,918.47
  5. Step 5: Solve for x
    x = 29,278,918.47/7,990.49
  6. Step 6: Final answer
    x = 3,664.22

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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.