Home / 7,811.37-11,718.81-2,546.64

Finding the Fourth Proportional to 7,811.37, 11,718.81 and 2,546.64

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Solution

The fourth proportional to 7,811.37, 11,718.81 and 2,546.64 is: 3,820.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,811.37 : 11,718.81 = 2,546.64 : x
  2. Step 2: Convert to fraction form
    7,811.37/11,718.81 = 2,546.64/x
  3. Step 3: Cross multiply
    7,811.37x = 11,718.81 × 2,546.64
  4. Step 4: Simplify right side
    7,811.37x = 29,843,590.30
  5. Step 5: Solve for x
    x = 29,843,590.30/7,811.37
  6. Step 6: Final answer
    x = 3,820.53

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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.