Home / 5,185.32-7,776.26-2,719.64

Finding the Fourth Proportional to 5,185.32, 7,776.26 and 2,719.64

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Solution

The fourth proportional to 5,185.32, 7,776.26 and 2,719.64 is: 4,078.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,185.32 : 7,776.26 = 2,719.64 : x
  2. Step 2: Convert to fraction form
    5,185.32/7,776.26 = 2,719.64/x
  3. Step 3: Cross multiply
    5,185.32x = 7,776.26 × 2,719.64
  4. Step 4: Simplify right side
    5,185.32x = 21,148,627.75
  5. Step 5: Solve for x
    x = 21,148,627.75/5,185.32
  6. Step 6: Final answer
    x = 4,078.56

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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.