Home / 7,410.89-11,112.84-2,479.21

Finding the Fourth Proportional to 7,410.89, 11,112.84 and 2,479.21

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Solution

The fourth proportional to 7,410.89, 11,112.84 and 2,479.21 is: 3,717.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,410.89 : 11,112.84 = 2,479.21 : x
  2. Step 2: Convert to fraction form
    7,410.89/11,112.84 = 2,479.21/x
  3. Step 3: Cross multiply
    7,410.89x = 11,112.84 × 2,479.21
  4. Step 4: Simplify right side
    7,410.89x = 27,551,036.27
  5. Step 5: Solve for x
    x = 27,551,036.27/7,410.89
  6. Step 6: Final answer
    x = 3,717.64

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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.