Home / 7,828.88-11,743.52-3,084.84

Finding the Fourth Proportional to 7,828.88, 11,743.52 and 3,084.84

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Solution

The fourth proportional to 7,828.88, 11,743.52 and 3,084.84 is: 4,627.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,828.88 : 11,743.52 = 3,084.84 : x
  2. Step 2: Convert to fraction form
    7,828.88/11,743.52 = 3,084.84/x
  3. Step 3: Cross multiply
    7,828.88x = 11,743.52 × 3,084.84
  4. Step 4: Simplify right side
    7,828.88x = 36,226,864.81
  5. Step 5: Solve for x
    x = 36,226,864.81/7,828.88
  6. Step 6: Final answer
    x = 4,627.34

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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.