Home / 7,884.28-11,825.58-2,689.96

Finding the Fourth Proportional to 7,884.28, 11,825.58 and 2,689.96

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Solution

The fourth proportional to 7,884.28, 11,825.58 and 2,689.96 is: 4,034.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,884.28 : 11,825.58 = 2,689.96 : x
  2. Step 2: Convert to fraction form
    7,884.28/11,825.58 = 2,689.96/x
  3. Step 3: Cross multiply
    7,884.28x = 11,825.58 × 2,689.96
  4. Step 4: Simplify right side
    7,884.28x = 31,810,337.18
  5. Step 5: Solve for x
    x = 31,810,337.18/7,884.28
  6. Step 6: Final answer
    x = 4,034.65

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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.