Home / 5,451-8,165.64-2,525.28

Finding the Fourth Proportional to 5,451, 8,165.64 and 2,525.28

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Solution

The fourth proportional to 5,451, 8,165.64 and 2,525.28 is: 3,782.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,451 : 8,165.64 = 2,525.28 : x
  2. Step 2: Convert to fraction form
    5,451/8,165.64 = 2,525.28/x
  3. Step 3: Cross multiply
    5,451x = 8,165.64 × 2,525.28
  4. Step 4: Simplify right side
    5,451x = 20,620,527.38
  5. Step 5: Solve for x
    x = 20,620,527.38/5,451
  6. Step 6: Final answer
    x = 3,782.89

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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.