Home / 7,579.79-11,369.21-3,418.10

Finding the Fourth Proportional to 7,579.79, 11,369.21 and 3,418.10

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Solution

The fourth proportional to 7,579.79, 11,369.21 and 3,418.10 is: 5,126.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,579.79 : 11,369.21 = 3,418.10 : x
  2. Step 2: Convert to fraction form
    7,579.79/11,369.21 = 3,418.10/x
  3. Step 3: Cross multiply
    7,579.79x = 11,369.21 × 3,418.10
  4. Step 4: Simplify right side
    7,579.79x = 38,861,022.76
  5. Step 5: Solve for x
    x = 38,861,022.76/7,579.79
  6. Step 6: Final answer
    x = 5,126.93

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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.