Home / 7,825.72-11,740.50-2,279.11

Finding the Fourth Proportional to 7,825.72, 11,740.50 and 2,279.11

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Solution

The fourth proportional to 7,825.72, 11,740.50 and 2,279.11 is: 3,419.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,825.72 : 11,740.50 = 2,279.11 : x
  2. Step 2: Convert to fraction form
    7,825.72/11,740.50 = 2,279.11/x
  3. Step 3: Cross multiply
    7,825.72x = 11,740.50 × 2,279.11
  4. Step 4: Simplify right side
    7,825.72x = 26,757,916.64
  5. Step 5: Solve for x
    x = 26,757,916.64/7,825.72
  6. Step 6: Final answer
    x = 3,419.23

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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.