Home / 7,832.49-11,748.93-1,989.55

Finding the Fourth Proportional to 7,832.49, 11,748.93 and 1,989.55

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Solution

The fourth proportional to 7,832.49, 11,748.93 and 1,989.55 is: 2,984.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,832.49 : 11,748.93 = 1,989.55 : x
  2. Step 2: Convert to fraction form
    7,832.49/11,748.93 = 1,989.55/x
  3. Step 3: Cross multiply
    7,832.49x = 11,748.93 × 1,989.55
  4. Step 4: Simplify right side
    7,832.49x = 23,375,083.68
  5. Step 5: Solve for x
    x = 23,375,083.68/7,832.49
  6. Step 6: Final answer
    x = 2,984.37

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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.