Home / 7,419.82-11,130.31-2,154.92

Finding the Fourth Proportional to 7,419.82, 11,130.31 and 2,154.92

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Solution

The fourth proportional to 7,419.82, 11,130.31 and 2,154.92 is: 3,232.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,419.82 : 11,130.31 = 2,154.92 : x
  2. Step 2: Convert to fraction form
    7,419.82/11,130.31 = 2,154.92/x
  3. Step 3: Cross multiply
    7,419.82x = 11,130.31 × 2,154.92
  4. Step 4: Simplify right side
    7,419.82x = 23,984,873.54
  5. Step 5: Solve for x
    x = 23,984,873.54/7,419.82
  6. Step 6: Final answer
    x = 3,232.54

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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.