Home / 7,784.64-11,676.54-2,519.55

Finding the Fourth Proportional to 7,784.64, 11,676.54 and 2,519.55

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Solution

The fourth proportional to 7,784.64, 11,676.54 and 2,519.55 is: 3,779.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,784.64 : 11,676.54 = 2,519.55 : x
  2. Step 2: Convert to fraction form
    7,784.64/11,676.54 = 2,519.55/x
  3. Step 3: Cross multiply
    7,784.64x = 11,676.54 × 2,519.55
  4. Step 4: Simplify right side
    7,784.64x = 29,419,626.36
  5. Step 5: Solve for x
    x = 29,419,626.36/7,784.64
  6. Step 6: Final answer
    x = 3,779.19

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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.