Home / 7,422.40-11,134.13-2,491.99

Finding the Fourth Proportional to 7,422.40, 11,134.13 and 2,491.99

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Solution

The fourth proportional to 7,422.40, 11,134.13 and 2,491.99 is: 3,738.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,422.40 : 11,134.13 = 2,491.99 : x
  2. Step 2: Convert to fraction form
    7,422.40/11,134.13 = 2,491.99/x
  3. Step 3: Cross multiply
    7,422.40x = 11,134.13 × 2,491.99
  4. Step 4: Simplify right side
    7,422.40x = 27,746,174.68
  5. Step 5: Solve for x
    x = 27,746,174.68/7,422.40
  6. Step 6: Final answer
    x = 3,738.17

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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.