Home / 7,944.23-11,915.42-2,101.29

Finding the Fourth Proportional to 7,944.23, 11,915.42 and 2,101.29

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Solution

The fourth proportional to 7,944.23, 11,915.42 and 2,101.29 is: 3,151.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,944.23 : 11,915.42 = 2,101.29 : x
  2. Step 2: Convert to fraction form
    7,944.23/11,915.42 = 2,101.29/x
  3. Step 3: Cross multiply
    7,944.23x = 11,915.42 × 2,101.29
  4. Step 4: Simplify right side
    7,944.23x = 25,037,742.39
  5. Step 5: Solve for x
    x = 25,037,742.39/7,944.23
  6. Step 6: Final answer
    x = 3,151.69

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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.