Home / 5,322.11-7,977.69-2,546.78

Finding the Fourth Proportional to 5,322.11, 7,977.69 and 2,546.78

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Solution

The fourth proportional to 5,322.11, 7,977.69 and 2,546.78 is: 3,817.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,322.11 : 7,977.69 = 2,546.78 : x
  2. Step 2: Convert to fraction form
    5,322.11/7,977.69 = 2,546.78/x
  3. Step 3: Cross multiply
    5,322.11x = 7,977.69 × 2,546.78
  4. Step 4: Simplify right side
    5,322.11x = 20,317,381.45
  5. Step 5: Solve for x
    x = 20,317,381.45/5,322.11
  6. Step 6: Final answer
    x = 3,817.55

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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.