Home / 7,825.54-11,740.82-2,279.21

Finding the Fourth Proportional to 7,825.54, 11,740.82 and 2,279.21

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Solution

The fourth proportional to 7,825.54, 11,740.82 and 2,279.21 is: 3,419.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,825.54 : 11,740.82 = 2,279.21 : x
  2. Step 2: Convert to fraction form
    7,825.54/11,740.82 = 2,279.21/x
  3. Step 3: Cross multiply
    7,825.54x = 11,740.82 × 2,279.21
  4. Step 4: Simplify right side
    7,825.54x = 26,759,834.32
  5. Step 5: Solve for x
    x = 26,759,834.32/7,825.54
  6. Step 6: Final answer
    x = 3,419.55

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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.