Home / 5,286.21-7,929.66-1,775.94

Finding the Fourth Proportional to 5,286.21, 7,929.66 and 1,775.94

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Solution

The fourth proportional to 5,286.21, 7,929.66 and 1,775.94 is: 2,664.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,286.21 : 7,929.66 = 1,775.94 : x
  2. Step 2: Convert to fraction form
    5,286.21/7,929.66 = 1,775.94/x
  3. Step 3: Cross multiply
    5,286.21x = 7,929.66 × 1,775.94
  4. Step 4: Simplify right side
    5,286.21x = 14,082,551.85
  5. Step 5: Solve for x
    x = 14,082,551.85/5,286.21
  6. Step 6: Final answer
    x = 2,664.02

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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.