Home / 7,418.87-11,128.29-2,224.74

Finding the Fourth Proportional to 7,418.87, 11,128.29 and 2,224.74

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Solution

The fourth proportional to 7,418.87, 11,128.29 and 2,224.74 is: 3,337.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,418.87 : 11,128.29 = 2,224.74 : x
  2. Step 2: Convert to fraction form
    7,418.87/11,128.29 = 2,224.74/x
  3. Step 3: Cross multiply
    7,418.87x = 11,128.29 × 2,224.74
  4. Step 4: Simplify right side
    7,418.87x = 24,757,551.89
  5. Step 5: Solve for x
    x = 24,757,551.89/7,418.87
  6. Step 6: Final answer
    x = 3,337.11

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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.