Home / 5,380.84-8,067.18-2,782.12

Finding the Fourth Proportional to 5,380.84, 8,067.18 and 2,782.12

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Solution

The fourth proportional to 5,380.84, 8,067.18 and 2,782.12 is: 4,171.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,380.84 : 8,067.18 = 2,782.12 : x
  2. Step 2: Convert to fraction form
    5,380.84/8,067.18 = 2,782.12/x
  3. Step 3: Cross multiply
    5,380.84x = 8,067.18 × 2,782.12
  4. Step 4: Simplify right side
    5,380.84x = 22,443,862.82
  5. Step 5: Solve for x
    x = 22,443,862.82/5,380.84
  6. Step 6: Final answer
    x = 4,171.07

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1.5x scale

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.